magicalbill said:
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Would switching to Amisol, or another synthetic oil significantly prolong the life of my Yamahas over-and-above the Yamalube? If so, it would be in my best interests to at least explore the switch.
I will cruise more in a few years, and will probably rack up thousands of hours
If I traded every few years, it might not matter either way.
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Well, you're right. A lot of people don't really care about maintenance and logevity because they trade off so often. I trade off but I'm fanatical about keeping them absolutely like new. I just love boats and cars and stuff that are really aged but look showroom perfect. It's a true joy and something to be proud of.
As far as switch, I would say emphatically yes. But you have to understand that I'm admittedly biased. I've been a synthetic lubricant enthusiast for more than 30 years. Everything I own has synthetic lubricant in it, gearboxes, auto-trannies, diffs, and engines. I have run it in every kind of vehicle, domestic, foriegn, high performance, boats, cars, bikes, you name it. If it's internal combustion it gets synthetic lubricants.
If you search the 'net you'll find similar proponents for them, and for Amsoil, and you'll find people that do just fine without them, and there are other brands of good synthetic lubricants besides Amsoil. What's become obvious over the years is that it's now generally accepted that synthetic lubricants are superior for stopping wear, suspending contaminates, they are more thermally stable, they don't break down as quickly as conventional oils, and you can expect better cold temp operation as well as hot, they improve fuel economy from reduced friction, and they offer extended change intervals if you want to do that. I don't do 25K mile oil changes on my cars, I stay with 5-7K or once a year on everything. I have read about synthetics on forums for on and offroad motorcycles, racing quads, boats, diesel trucks, motorhomes, motocross, roadracing motorcycles, snow mobile maintenance, and heavy equipment. There are proponents for amsoil in all of them. Go look up 'the oil guy'. There's some real world testing with a Chevy Camaro V8 with lab testing and extended drain intervals with various brands and types of oils, and amsoil is always the best. There's lots of unbiased testing that's been done to document their claims.
One of the reason I stick with Amsoil is because they have a product for virtually every application. It doesn't matter what kind of vehicle or motor, they have a specialized lubricant created just for it.
Now, for your motors longlife, there are probably other factors that will shorten it's life besides lubrication. Corrosion is said to kill a marine engine long before it wears out. And the supporting systems wear out and quit, like your cooling system, charging system, and fuel system. But let's say you can keep those things working and your motor running. If it's accepted that your lubricant will stop wear and protect your motors internals, then rings last longer, bearings, valve guides, all the wear areas of a motor. An engine with synthetic lubrication will virtually last forever. They generally will not fail due to component wear, something else will kill them first.
It's a long-winded way of saying yes. The caveat is that if you maintain your equipment as the manufactuer intended, using yamalube, you'll probably not experience failure due to lubrication either. Unless of course, you get a zillion hours on it. Then yes, a full synthetic is going to out last it. Or if you have some other failure that taxes your lubricant, like an overheat/thermal breakdown, or failed oil pump, or plugged filter, or some other catastrophic failure. Thermal breakdown is the main reason I use synthetic ATF in EVERYTHING. Plus tranny's just shift better with it.
I don't like guys that just say Amsoil is the best without anything to back it up. That's just marketing hype. So I've gone out and experimented, and researched the subject, and I like to educate people and get them to go explore on their own and find out what other people have experienced with it and other similar products. That way you can make an educated decision on what's right for you.
For me, for my motor, it's just a given that I would use it. I consider it cheap insurance and I've had outstanding success with it, without any caveats. I've had several motors with close to a hundred grand on them that use zero oil. We currently have a BMW 325 with 83K that uses no oil within it's 7K mile oil changes. It runs like a clock. When I bought it with 33K, it probably had only had its oil changed twice, that's the factory recommendation. But the oil fill cap was caked with sludge, and the oil looked like jello. A couple of short change intervals with Amsoil and it was looking like new inside. That was 5 years ago now. And I have never had a transmission failure on any vehicle with synthetic ATF. It's just a given that everything gets changed out. The new Allison transmissions for trucks and RV's (I have two of them Amsoil ATF in them) all come with Castrol synthetic ATF. And many cars now come with and require synthetic motor oil, like Corvette (GM) Porsche, Audi, Mercedes, BMW, VW, Saab...the list goes on and on. That has to tell you something.
Okay, I've rambled enough....Just ignore me if you're bored :mrgreen: