What is a good oil for a 4 stroke that won't have a neg effect on lubercation & clutch performance?

Question

Sorry.. supposed to be motorcycle topc. Dammit lol

Answer 1

AstroGlide

Answer 2

Clutch performance? Are we talking about a motorcycle here?

If your crankcase and tranny share a common lube bath, you must stick to the manufacturer's recommended stuff.

Now, myself, I'd deviate because I'm that kind of guy.

Hell, I destroyed the engine in an oil burning Studebaker truck not too many years ago because I ran 100% medical grade castor bean oil in the crankcase. I had read that in WW1 they used it in the radial engines because it's 60wt all the time, it never changes viscosity due to high, or low temperatures.

It had a great smell, it smelled like a speedway flat-track where they mix castor bean oil with the gasoline.

But when I needed to change out the steering gearbox, it sat for a couple of months without running, and it froze up solid.

If that were my bike, I'd avoid synthetics because they absorb water and don't release it like petroleum oil. It stays in solution, and could have a bad effect on the clutch face compound.

Your best bet is to use a high quality petroleum based oil of the correct viscosity. I've always preferred Castrol, but there are oils on the market designed specifically for motorcycles that are probably designed specifically for the kind of shearing your oil's gonna get.
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Answer 3

Talk about six of one and a half dozen of the other. Your engine oil has no effect on clutch performance. The best advice is to consult the dealer where you bought the car. My advice is to avoid Quaker State. It contains clay which, over time, coagulates in your engine and produces sludge. I use Pennzoil, but any really should work for you, so long as you follow the manufacturer's guidelines on viscosity.

Answer 4

always use Castrol or Valvoline oil in your vehicle engines --- there is no oil that is dispersed to a clutch -- the clutch may have a hydraulic slave cylinder as the mechanism that will engage or disengage the clutch and in that usage the slave cyl. will use hydraulic fluid ---- the viscosity of the oil that you use should be what's necessary for the area in which you reside and the best advice you can get for that info will be at your local auto parts store ...........______________

Answer 5

Honestly, you can use any SJ through SM rated oil that does NOT say "energy conserving" on the API rating on the back of the bottle. With that said, Amsoil makes a motocycle specific oil, and why not use the best?

http://www.amsoil.com/storefront/default.aspx?zo=1452557

Answer 6

when i used to ride i owned an 1982 honda cb900f. at first barhdal or castrol was the oil i used, but she was running way to hot especially in b.c. heat. i switched the motul synthetic 15/50 weight and had no clutch slippage. it also dropped the over all running temperature of the bike, and it cooled off faster to. be prepared to open your wallet if you choose motul. in 94-95 it was $15.00 per 900ml container,,,but worth every penny.

Answer 7

If you could add some details to the ?? it might help on getting a better answer? When I read your question, I think of an ATV not a vehicle? What type of vehicle?

Answer 8

crisco