Question:
I ran a 60 hp Evinrude for many years.equipment review bass Almost at the same time, a buddy bought a 60 hp Mariner. I always ran high test Amoco and my friend always ran the cheapest unleaded regular he could find. After seveal years ( I’m guessing around 5 or 6 ), both of us had engine problems, both turned out to be carbon build-up, both spent well over a grand getting the engines rebuilt. I sold that rig awhile back and now have a new one. Any advise for preventing a reoccurence of this problem ? My dealer recommended I use an OMC fuel additive which I believe is the equivalent to Stabil…which I am using.equipment review bass Any other comments or advise ?
Response:
Use OMC Carbon Guard. Stabil and OMC 2X4 conditioner is for keeping stored gas fresh over a period of time.equipment review bass OMC recommends a bottle of Carbon Guard to each tank of gas or using Engine Tuner annually. Note: engines with over 100 hours of service: OMC recommends using Engine Tuner before adding Carbon Guard. I ran a 60 hp Evinrude for many years. Almost at the same time, a buddy bought a 60 hp Mariner. I always ran high test Amoco and my friend always ran the cheapest unleaded regular he could find. After seveal years equipment review bass ( I’m guessing around 5 or 6 ), both of us had engine problems, both turned out to be carbon build-up, both spent well over a grand getting the engines rebuilt. I sold that rig awhile back and now have a new one. Any advise for preventing a reoccurence of this problem ? equipment review bass My dealer recommended I use an OMC fuel additive which I believe is the equivalent to Stabil..
Mark McCoy <a href=”http://members.aol.com/mmccoy01/index.html”McCoy’s</a Bumpus Mills, Tennessee
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When I had my 110 Johnson rebuilt, the mechanic told me the way to keep carbon buildup from happening equipment review bass(he was talking about the warranty period) is to not use just one or two speeds, like idle and WOT. And he strongly recommended replacing the spark plugs each year (we don’t have seasons in South Carolina).equipment review bass It has only been two years, but so far it seems to work. When I first get on the water, I let the motor warm up at idle while I park the Jimmy. When I get back to the boat, I let her cruise As I — Go Fishing. And may your fish be as big as your tales. Columbia, SC Lake Murray
- Hide quoted text — Show quoted text – I ran a 60 hp Evinrude for many years. Almost at the same time, a buddy bought a 60 hp Mariner. I always ran high test Amoco and my friend always ran the cheapest unleaded regular he could find. After seveal years ( I’m guessing around 5 or 6 ), both of us had engine problems, both turned out to be carbon build-up, both spent well over a grand getting the engines rebuilt. I sold that rig awhile back and now have a new one. Any advise for preventing a reoccurence of this problem ? My dealer recommended I use an OMC fuel additive which I believe is the equivalent to Stabil…which I am using. Any other comments or advise ? -=- Paul -=-
Response:
Make sure you’re burning TCW-III rated ob oil as well. I ran a 60 hp Evinrude for many years. Almost at the same time, a buddy bought a 60 hp Mariner. I always ran high test Amoco and my friend always ran the cheapest unleaded regular he could find. After seveal years ( I’m guessing around 5 or 6 ), both of us had engine problems, both turned out to be carbon build-up, both spent well over a grand getting the engines rebuilt. I sold that rig awhile back and now have a new one. Any advise for preventing a reoccurence of this problem ? My dealer recommended I use an OMC fuel additive which I believe is the equivalent to Stabil…which I am using. Any other comments or advise ? -=- Paul -=-
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Evinrude TCW-III was the only oil I ever ran, which apparently didn’t make any diff. I see where Evinrude now has a new oil which has Carbx (sp?) in it to keep carbon out of your engine. Maybe I’ll try some of that. However, this weekend I’m going to be out looking for OMC carbon guard, which someone recommeded earlier in this thread. Hope that does the trick. – Hide quoted text — Show quoted text -Make sure you’re burning TCW-III rated ob oil as well. I ran a 60 hp Evinrude for many years. Almost at the same time, a buddy bought a 60 hp Mariner. I always ran high test Amoco and my friend always ran the cheapest unleaded regular he could find. After seveal years ( I’m guessing around 5 or 6 ), both of us had engine problems, both turned out to be carbon build-up, both spent well over a grand getting the engines rebuilt. I sold that rig awhile back and now have a new one. Any advise for preventing a reoccurence of this problem ? My dealer recommended I use an OMC fuel additive which I believe is the equivalent to Stabil…which I am using. Any other comments or advise ? -=- Paul -=- — __ __/ __ /_/ /__ ,< _ /___ _ _, _/ _ /| | /_____/ /_/ |_| /_/ |_|
-=- Paul -=-
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Somebody in the group, not too long ago, stated that “TC-W3 and premium fuel was a no-no”. Breaks down the lubricating compounds of the oil.
Premium gas and TC-W3 is definatelly a NO-NO. The reason is, there is a large amount of detergent additives in TC-W3, as there is also a large amount in premium gasoline. When you mix that much detergent additives together, they end up diluting the lubricating abilities of the oil itself. Very bad scene there. If your buddy insists on running premium gas, then tell him to belly up to the bar and be a real man and run the racing synthetic oil to go with it. Don’t screw around, let’s see how much cash you can really waste. And waste it is, most motors today run just fine on 88 octane fuel. Unless he’s cut the heads and ran the ignition timing way up, premium fuel is just a big expense and can certainly damage that John-O-Ruter he’s running.
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you can really waste. And waste it is, most motors today run just fine on 88 octane fuel. <snip Pat, I’m glad to hear you say that. Shortly after I bought my boat in 95 , Jimmy Houston said to use regular unleaded. They didn’t need premium. My cousin (even after I told him) continued running premium. His motor was rebuilt twice in 3 years ( piston walls scored ). $3500 a pop. Last year he bought a 4 stroke yamaha. Thanks for the info, Steve — Release em today so they can play again tomorrow. Practice CPR. catch photo release.
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- Hide quoted text — Show quoted text – Somebody in the group, not too long ago, stated that “TC-W3 and premium fuel was a no-no”. Breaks down the lubricating compounds of the oil. Premium gas and TC-W3 is definatelly a NO-NO. The reason is, there is a large amount of detergent additives in TC-W3, as there is also a large amount in premium gasoline. When you mix that much detergent additives together, they end up diluting the lubricating abilities of the oil itself. Very bad scene there. If your buddy insists on running premium gas, then tell him to belly up to the bar and be a real man and run the racing synthetic oil to go with it. Don’t screw around, let’s see how much cash you can really waste. And waste it is, most motors today run just fine on 88 octane fuel. Unless he’s cut the heads and ran the ignition timing way up, premium fuel is just a big expense and can certainly damage that John-O-Ruter he’s running.
Hey Pat , my motor is an 81 model . I’m not sure , but I think the lowest grade available at the time was what the highest grade is today . I’ve been running Amoco 93 with Mercury Quicksilver . What do you think ? Ripsomelips
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The owners manual that came with a 1992 70 hp. OMC motor that I had said use 87 octane or higher. It said PREMIUM gasoline was specifically encouraged because it may contain additives that would help eliminate carbon buildup. It also said to use TCW-3 oil. The manual for the 1998 OMC 115 hp that I have now only says to use 87 octane or higher. If you want gas that has less detergents, then buy the cheap, no name gas at Walmarts. Mark McCoy <a href=”http://members.aol.com/mmccoy01/index.html”McCoy’s</a Bumpus Mills, Tennessee
Response:
Paul!! They suggest that you use the middle of the line gas( 89 octane )in a 60hp engine! Abe Watson
I’m running a Johnson 115 now and I’m burning regular. I’ve was told by one mechanic that alot of the carbon problem is caused by the newer fuels that burn cooler. Also, I guess it doesn’t help running at low speeds in cold water ( winter duck hunting ). My engine is new and my plan is to burn regular fuel (87), OMC oil, OMC 2+4 (stabil) , and OMC carbon guard. Time will tell if I’ve made the right decision. -=- Paul -=-
Response:
I was told the same thing by Galaxie Marine in Auburn, CA. I have a ‘91 Johnson GT200 on my 190 DCX Champion and was told to use 89 octane and NEVER use premium. The premium has additives designed for 4-stroke motors and it will harm 2-stroke outboards quickly. I was also told to use Chevron and 76 gas only, Mercury Premium plus TCW3 2-stroke oil, and add 1 oz. per gallon of fuel in the tank in addition to the oil injection if I am going to run it hard. I was also told to use OMC’s Carbon Guard in every other tank full. Mike – Hide quoted text — Show quoted text – Paul!! They suggest that you use the middle of the line gas( 89 octane )in a 60hp engine! Abe Watson I’m running a Johnson 115 now and I’m burning regular. I’ve was told by one mechanic that alot of the carbon problem is caused by the newer fuels that burn cooler. Also, I guess it doesn’t help running at low speeds in cold water ( winter duck hunting ). My engine is new and my plan is to burn regular fuel (87), OMC oil, OMC 2+4 (stabil) , and OMC carbon guard. Time will tell if I’ve made the right decision. -=- Paul -=-
“Truth is so obscure in these times and falsehood so established, that unless we love the truth, we cannot know it.” – Blaise Pascal * Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * The fastest and easiest way to search and participate in Usenet – Free!
Response:
I think the problem is that every marine dealer and mechanic has a different opinion and none of them know the facts. I was told by my dealer to never run anything BUT premium. Also, one owner’s manual (92 OMC 70) said premium was encouraged and another later manual (98 OMC 115) said only to use 87 or higher octane.
Mark, The reason why the older manual said premium and the newer one said 87 or higher is because the formulation of gas has changed. I was told to run premium in my 45 hp Mariner on my Bass Tracker when I bought it in ‘87, and I am now told to use only the 89 octane as the premium has been reformulated for 4-stroke car/truck engines. With all due respect, if your dealer said to run premium in it with the newer gasolines then he doesn’t know what he is talking about. Mike “Truth is so obscure in these times and falsehood so established, that unless we love the truth, we cannot know it.” – Blaise Pascal * Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * The fastest and easiest way to search and participate in Usenet – Free!
Response:
I think the problem is that every marine dealer and mechanic has a different opinion and none of them know the facts. I was told by my dealer to never run anything BUT premium. Also, one owner’s manual (92 OMC 70) said premium was encouraged and another later manual (98 OMC 115) said only to use 87 or higher octane. I was told the same thing by Galaxie Marine in Auburn, CA. I have a ‘91 Johnson GT200 on my 190 DCX Champion and was told to use 89 octane and NEVER use premium. The premium has additives designed for 4-stroke motors and it will harm 2-stroke outboards quickly. I was also told to use Chevron and 76 gas only, Mercury Premium plus TCW3 2-stroke oil, and add 1 oz. per gallon of fuel in the tank in addition to the oil injection if I am going to run it hard. I was also told to use OMC’s Carbon Guard in every other tank full.
Mark McCoy <a href=”http://members.aol.com/mmccoy01/index.html”McCoy’s</a Bumpus Mills, Tennessee
Response:
I was told by my dealer to never run anything BUT premium. Also, one owner’s manual (92 OMC 70) said premium was encouraged and another later manual (98 OMC 115) said only to use 87 or higher octane. Mark,
Mike was mostly correct, just left a few “whys” out of the equation. True the gas we’re running now is reformulated from what it used to be. Mostly there is a lot more detergent in premium than there used to be..this is the problem with your outboard. TCWIII oil has much more detergent additives in it than the TCWII did. When you combine III with today’s premium gas, it is a “overload” of detergent, which over time will cause bad things. Stuck rings, and more important, the gas/oil mixture will not stay together properly in the crancase of that two stroke engine, which will lead to major failure. So, to put it simply, DO NOT mix TCWIII oil and premium gas. Pat
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OK, so why doesn’t the outboard manufacturers say not to use premium gasoline. If premium damaged motors, why don’t the outboard manufacturers inform their customers not to use it? My 1998 manual says: Use any regular unleaded, regular leaded, OR PREMIUM UNLEADED automotive gasoline and TCW-3 oil. Mike was mostly correct, just left a few “whys” out of the equation. True the gas we’re running now is reformulated from what it used to be. Mostly there is a lot more detergent in premium than there used to be..this is the problem with your outboard. TCWIII oil has much more detergent additives in it than the TCWII did. When you combine III with today’s premium gas, it is a “overload” of detergent, which over time will cause bad things. Stuck rings, and more important, the gas/oil mixture will not stay together properly in the crancase of that two stroke engine, which will lead to major failure.
Mark McCoy <a href=”http://members.aol.com/mmccoy01/index.html”McCoy’s</a Bumpus Mills, Tennessee
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<< OK, so why doesn’t the outboard manufacturers say not to use premium gasoline. JOB SECURITY
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I also see where Evinrude has come out with a new oil which contains Carbx, suppost to help protect your engine: http://www.omc-online.com/genuineparts/OIL%20WEBSITE/home.html Wonder if this stuff can be run in pre-mix or standard injection systems or only Evinrude’s with this new FICHT system ? – Hide quoted text — Show quoted text -I was told the same thing by Galaxie Marine in Auburn, CA. I have a ‘91 Johnson GT200 on my 190 DCX Champion and was told to use 89 octane and NEVER use premium. The premium has additives designed for 4-stroke motors and it will harm 2-stroke outboards quickly. I was also told to use Chevron and 76 gas only, Mercury Premium plus TCW3 2-stroke oil, and add 1 oz. per gallon of fuel in the tank in addition to the oil injection if I am going to run it hard. I was also told to use OMC’s Carbon Guard in every other tank full. Mike Paul!! They suggest that you use the middle of the line gas( 89 octane )in a 60hp engine! Abe Watson I’m running a Johnson 115 now and I’m burning regular. I’ve was told by one mechanic that alot of the carbon problem is caused by the newer fuels that burn cooler. Also, I guess it doesn’t help running at low speeds in cold water ( winter duck hunting ). My engine is new and my plan is to burn regular fuel (87), OMC oil, OMC 2+4 (stabil) , and OMC carbon guard. Time will tell if I’ve made the right decision. -=- Paul -=- “Truth is so obscure in these times and falsehood so established, that unless we love the truth, we cannot know it.” – Blaise Pascal * Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * The fastest and easiest way to search and participate in Usenet – Free!
-=- Paul -=-
Response:
If I can remember, later I will research this issue. But one of us needs to find the answer. I was using premium until about a year ago, when my old ‘89 Johnson started to miss. Pulled the spark plugs and noticed the anodes were pretty well gone. Changed the spark plugs, switched to regular unleaded gas, and haven’t had a problem since. Where are the mechanics here when you really need them? — Go Fishing. And may your fish be as big as your tales. Columbia, SC Lake Murray
- Hide quoted text — Show quoted text – I ran a 60 hp Evinrude for many years. Almost at the same time, a buddy bought a 60 hp Mariner. I always ran high test Amoco and my friend always ran the cheapest unleaded regular he could find. After seveal years ( I’m guessing around 5 or 6 ), both of us had engine problems, both turned out to be carbon build-up, both spent well over a grand getting the engines rebuilt. I sold that rig awhile back and now have a new one. Any advise for preventing a reoccurence of this problem ? My dealer recommended I use an OMC fuel additive which I believe is the equivalent to Stabil…which I am using. Any other comments or advise ? -=- Paul -=-
Response:
Immmmmmmmm connnnnnnnnnnnnnnnnnnnnnfuzzzzzzed… I have a Merc XR6 150… Have always been told to use nothing but premium.. has that changed or does it make a difference with smaller motors? Help appreciated. josh
- Hide quoted text — Show quoted text – I was told the same thing by Galaxie Marine in Auburn, CA. I have a ‘91 Johnson GT200 on my 190 DCX Champion and was told to use 89 octane and NEVER use premium. The premium has additives designed for 4-stroke motors and it will harm 2-stroke outboards quickly. I was also told to use Chevron and 76 gas only, Mercury Premium plus TCW3 2-stroke oil, and add 1 oz. per gallon of fuel in the tank in addition to the oil injection if I am going to run it hard. I was also told to use OMC’s Carbon Guard in every other tank full. Mike Paul!! They suggest that you use the middle of the line gas( 89 octane )in a 60hp engine! Abe Watson I’m running a Johnson 115 now and I’m burning regular. I’ve was told by one mechanic that alot of the carbon problem is caused by the newer fuels that burn cooler. Also, I guess it doesn’t help running at low speeds in cold water ( winter duck hunting ). My engine is new and my plan is to burn regular fuel (87), OMC oil, OMC 2+4 (stabil) , and OMC carbon guard. Time will tell if I’ve made the right decision. -=- Paul -=- “Truth is so obscure in these times and falsehood so established, that unless we love the truth, we cannot know it.” – Blaise Pascal * Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * The fastest and easiest way to search and participate in Usenet – Free!
Response:
Immmmmmmmm connnnnnnnnnnnnnnnnnnnnnfuzzzzzzed… I have a Merc XR6 150… Have always been told to use nothing but premium.. has that changed or does it make a difference with smaller motors? Help appreciated.
josh I would talk to a couple of good boat mechanics and get their input. I have talked to two different mechanics here in CA who are about 150 miles apart from each other, and who are considered the best outboard mechanics in their areas by numerous customer’s input. They both told me to use 89 octane and to NEVER use 92 octane premium. I am going to take their advice as it would not benefit them in any way to recommend one fuel over another. Maybe gas formulations are different throughout the country? Mike “Truth is so obscure in these times and falsehood so established, that unless we love the truth, we cannot know it.” – Blaise Pascal Got questions? Get answers over the phone at Keen.com. Up to 100 minutes free! http://www.keen.com
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