125-200cc What gearbox oil are you using?

[DTX915]

Rotella 5w40 full synthetic in the blue bottle



The water in the oil is common if you hit a water crossing with a warm engine. The engine rapidly cools and sucks water up the trans vent hose like a straw. You can either reroute the vent hose to the air box or do like I did and simply drill a small hole in the vent hose near where it hooks in to the transmission, this will prevent siphoning.

I have had the WR144 apart more times than I can count ,this must be the answer. Thanks

 

[Daniel B]

I don't agree with what the manufactuer recomends, since they often have agreements in place with aftermarket companies to make customers spend their money on that product, rather than a just as good product from elsewhere. The blurb on the putoline box said for high performance two stroke motorcycle gearboxes, my husky is a high performance 2 stroke, and that is why I bought it it feels just as good now as it ever did, no notchiness or anything

It's true manufacturers do have agreements with oil brand companies to make us buy their brand,but this has nothing to do with oil spec recommendation.
Bmw recommended Castrol oils for years ,but in my cars I always used Mobil1,but still used same oil viscosity.
As we get more replies to the thread,I see some members are sticking to the manufacture recommended 5w 40 but with different brands.

 

[justintendo]

It's true manufacturers do have agreements with oil brand companies to make us buy their brand,but this has nothing to do with oil spec recommendation.
Bmw recommended Castrol oils for years ,but in my cars I always used Mobil1,but still used same oil viscosity.
As we get more replies to the thread,I see some members are sticking to the manufacture recommended 5w 40 but with different brands.

also, in my original swedish huskies, a straight "20w engine oil" is the spec. i use the t6 rotella in this as well.

 

[Petar]

+1 for ATF type F.