Transmission oil

[250rkyle]

What oil should I use for my 1983 atc 25Or I have heard of people using 10 40?

[TimSr]

If you had a manual it would tell you to use 10w40 or 10w30.

[bslama69]

Don't use synthetic.

[fabiodriven]

Actually I highly recommend synthetic oils. They're superior to conventional oils in almost every way.

[keister]

I use 10W40 in my 250R. Some use synthetic. Some use automotive automatic transmission fluid.
Somebody made a joke about using liquid margarine, basically:
"As long as you keep the fluid at the proper level and change it periodically most any lubricant will work."

[Jon Boy]

so what about this stuff i've heard with using ATF in the 2smokes?
http://www.3wheelerworld.com/showthr...ght=stroke+atf

[leviblue]

i run type f and change it every 5 rides or 7-8 hours on the trail R and after 2 runs on the racers... use type f tranny forget all about using 10w40

[bslama69]

Never heard of using ATF as transmission fluid but it's only like 7w so I can't see it being right. It's recommended for fork oil replacement but never heard as a replacement for transmission oil.

Synthetic oils are too "slick" for wet clutch systems. It will work but your clutch plates will slip more before they grab. My experience has been straight-up 10w-40 and I've not had a transmission nor clutch failure in 30+ years.

[badass350x]

People have run tranny oil for years without any problems .

[Jason125m]

I run Bel-Ray Gear Saver Transmission Oil..

[TimSr]

Synthetic oils are too "slick" for wet clutch systems. It will work but your clutch plates will slip more before they grab.

http://www.klotzlube.com/proddetail....uart%5F2&cat=4

https://www.amsoil.com/storefront/tcc.aspx

http://www.mxsouth.com/castrol/castr...ke4-stroke.htm

[fabiodriven]

Never heard of using ATF as transmission fluid but it's only like 7w so I can't see it being right. It's recommended for fork oil replacement but never heard as a replacement for transmission oil.

Synthetic oils are too "slick" for wet clutch systems. It will work but your clutch plates will slip more before they grab. My experience has been straight-up 10w-40 and I've not had a transmission nor clutch failure in 30+ years.

People have used ATF for years and it works great. This is a fact.

Also, the synthetics designed for use with a wet clutch are superior in almost every way as I stated. Your info is wrong. It's not such a big deal since this is the new guys' section, but please refrain from spreading such bad info throughout the forum. Thank you.

[RIDE-RED 250r]

^^^Agreed^^^

I have heard many opinions over the years on wether or not it is important to use oil designated for motorcycles and/or wet clutches. But personally, I choose to run "wet clutch safe" motorcycle or ATV oil. And I use the weight oil recommended by my Honda Service manual, and that's 10w-40.

I have no doubt that ATF works fine as some here use. After all, an automatic trasmission in a vehicle is very similar to our ATV transmissions in that they have a multi-disc wet clutch. Those transmissions are just bigger and more sophisticated and IMHO endure ALOT more use and abuse. I wouldn't hesitate to use ATF in my R if motorcycle oil wasn't readily available, I'm sure it's up to the task.....