Most car oils do have some form of friction modifiers and are not really wet clutch adaptable. It will say on the container if it is wet clutch adaptable.... this is why many use a motorcycle oil, these are designed for the clutch system. Amzoil makes both types, I don't need the wet clutch properties for my automatic transmission machine, but I do use the motorcycle version for the machines with clutches. I watch my oil and change it when ever it starts to change color or one year whichever comes first. So far my oil has stayed clear for the full year, when I have changed it I also change the filter. One year just out of curiosity I drained the old dirty filter and the old oil thru a white coffee filter to see if their was anything in them, and the coffee filter barely had anything in it. I have also found that the 10-40 Amzoil gives much easier starting in the cold of winter. Synthetic is definetly the way to go, I would caution the Mobil oil as it is not recomended for air cooled engines !! I also use the synthetic Amzoil diff fluid in my 4x4 and all other machines, it works especially well in limited slip differentials I can feel the difference in my 4x4. Back in the early ninetys brigs and stration engines had some engine problems involving oil, I had just purchased a rider mower with that engine, after 10 hours I switched to Amzoil and still have it today as a backup to my zero-turn mower. I know many other people who have had engine problems from that era of engine but not mine, i switched my new zero-turn to amzoil as soon as the breakin period was over,I checked with cub cadet and they said it was a good idea and supported the Amzoil brand.

KenR

 

Dino Rotella 15/40 in everything from a 5 horse Briggs to a 600 HP blown small block Chevy. Never any oil related problems.

 

[quote]
Originally posted by: airshot
Most car oils do have some form of friction modifiers and are not really wet clutch adaptable. It will say on the container if it is wet clutch adaptable....

Actually many Motorcycle oils have friction modifiers in them also, this is typically molybdenum. There is only speculative evidence as to the harmful effects of friction modifiers on wet clutch machines. Most people, myself included, like to be conservative and avoid the "possibility" of clutch slippage. Fortunately in our Utes this is not even a problem because they don't use wet clutches. Almost any oil will work well as long as it's changed on a regular basis. The time you go between oil changes, the severity to which you work your engine and the environment you ride in have a bigger impact on engine longevity then the brand of oil you use. All modern motor oils meeting the current API/JSO specs are good oils. Synthetics have an obvious edge in that they contain a more uniform chemical composition which aids in cold viscosity flow, thermal breakdown and usually a more advance group VII package which contains additives to minimize metal to metal effects upon a lubrication failure.

 

My KTM is the only one I have with filters and I change them every other oil change.

And I have had no problems what so ever from using "car oil" in my other thumpers. No clutch slipping at all. The 50,75 and 200 have been using it for over 10 years. I change it every year in those bikes.

 

Amsoil 0w40 is the best motor oil you can put in your ATV or your sled.

 

I use Royal Purple's 10w40 ATV oil. No complaints so far.

 

i don't see how 0w-40 can be the best oil. my manual lists 5w as the lightest and only below zero degrees.

monty

 

PRODUCT DESCRIPTION
AMSOIL Formula 4-Stroke® Power Sports Synthetic Motor Oil (AFF) is specially formulated for ATVs, snowmobiles and other power sports applications. Its broad viscosity range and wax-free formulation make it excellent for use in both hot and cold temperature extremes. As an SAE 40 weight motor oil, AMSOIL AFF provides outstanding protection for hot operating engines, while its 0W rating and -60°F pour point ensure easy cranking, excellent cold weather starting and quick post-startup protection. Formula 4-Stroke® Power Sports is an extreme temperature lubricant that provides outstanding performance in high performance, recreational or work/utility engines.

Applications and Recommendations
AMSOIL Formula 4-Stroke® Power Sports Synthetic Motor Oil is recommended for four-stroke engines and transmissions on two- or four-stroke powered applications. It is an all climate/all season oil that replaces 0W-30, 0W-40, 5W-30, 10W-30 and 10W-40 oils for ATVs, snowmobiles and other power sports equipment. Manufacturers include Polaris®, Honda®, Yamaha®, Bombardier®, Suzuki®, Kawasaki® and Arctic Cat®.

If you need more info, go to
http://www.amsoil.com/storefront/aff.aspx

 

gunman:
well, you sure turned into an expert fast. YOU were just asking what oil to use in a 700 on Jan 22, 2006 at 11:05 am. i seem to remember you have an Amsoil dealer for a relative?

monty

 

Yes your right, I was checking into oil weight. And my in-law is a Amsoil dealer. He told me about AMSOIL Formula 4-Stroke® Power Sports Synthetic Motor Oil. I always knew Amsoil was good stuff, but didn't want to pay that much for oil. I didn't relize it's cheaper to buy Amsoil then regular motor oil back then. I wouldn't say I'm a expert in motor oil. I just copied that info off of Amsoil's web site. I know a lot of sled owners love Amsoil. It's good stuff all the way around. If you look at their specs, you'll see they beat everyone else. No one's specs can beat them. It's a no brainer.

So montyh,
What are you getting at?