Which Oil should I use

[FLSnake]

I have 3 Quads, a Kawasaki, A Suzuki, and a Polaris, what oil would be best to run in all 3, or does it even matter?

Thanks

[TRX350_On_The_Rack]

I think it really only matters between 2 and 4 strokes, but otherwise I think its the weight that matters. Check your manual.

[HUGGYJD]

In my Polaris ,the dealer tells me to run the Polaris O-W30 synthetic . In my honda the dealer tells me  to run regular 20w-50 not  synthetics. GO FIGURE!!

[IT200]

Thats because your polaris runs an external clutch. Your other bikes run an internal wet clutch. Synthetic oils leave deposits on the clutch. a good 20w50 petrolium based oil would work fine in all bikes. However for best protection you should use a four stroke atv oil as they have been formulated to last longer before the oil breaks down.

[HUGGYJD]

Yes..... I run the Honda 20-50 im my rancher. I would really like to run a good synthetic in it but i am not sure of what kind or even if i should.

[bigred400]

  I run Amsoil in all my stuff, 1st. synthetic made, checkout the test on their site
 https://www.amsoil.com/StoreFront/amf.aspx  

[Truegrit]

I used Amsoil synthetic in my Polaris and it was fine and is great for any other belt drive quad. But do not use synthetic in the Honda. The synthetic will not allow the clutches to function properly (as mentioned above) The manual specifically says DO NOT use them.

[Chuck_Norris]

 I run Amsoil in all my stuff, 1st. synthetic made, checkout the test on their site
 https://www.amsoil.com/StoreFront/amf.aspx  
 

I also run Amsoil, since day one. broke the bike in on the 0W30 and have benn running the 20w50 ever since. the hoopla about synthetics and clutchs is the need to understand which product to use. A synthetic automotive oil is different than a synthetic 4 Stroke oil. the 4 stroke oil doesnt have the Frictions modifers that creates that deposites that have been mentioned.  

[bigred400]

AMEN Brother Chuck.......you said it all, naysayers just need to read up or try it, I bored my TRX400EX to a 416 w/11:1, it ran a tad hot swapped over to Amsoil and it was at least 10* cooler,it is made for wet-clutches, Honda actually makes a synthetic they sell for thier Quads also ,I've tryed it but like the Amsoil better.
SAE 10W-40 Synthetic High Performance Motorcycle Engine Oil
Formulated for maximum protection of motorcycle engines (liquid or air cooled, standard or V-twin), transmissions and primary chaincases. High levels of phosphorus and zinc provide maximum wear protection. Wet clutch compatible. Contains no friction modifiers. Anti-foam and viscosity stable for best possible overall protection. Performance specifications include: API SG/CF, JASO MA

[HUGGYJD]

Does Amsoil make a 20-50 grade for a 4 stroke? I would really love to run it in my new Rancher. The Rancher only has 100 miles on it . Should i wait and get more miles on it before switching to Amsoil?

[bigred400]

yes they have 20W-50,
SAE 20W-50 Synthetic
High Performance Motorcycle Engine Oil
Formulated for maximum protection of motorcycle engines (liquid or air cooled, standard or V-twin), transmissions and primary chaincases. High levels of phosphorus and zinc provide maximum wear protection. Wet clutch compatible. Contains no friction modifiers. Anti-foam and viscosity stable for best possible overall protection. Performance specifications include: API SG/CF, JASO MA