I have a 50 cc scooter.
In the user manual it ask for 85-90 gear oil for the winter.
However, I can not find it anywhere.
The closest one I can find if 80W-90.
I am wondering if anyone out there know will that work?
Can I use 80W-90 gear oil to replace 85-90 that is called in the user manual?
80W-90 is fine; thinner is better than thicker.
However, if you're going to the extreme to change the oil (most people don't bother with it), then just drain the old oil, dispose/recycle of it properly, and leave the scooter until the spring, at which point you add new oil.
BTW, any decent automotive or hardware store will carry your oil. Bring your manual when you ask them.Can I use 80W-90 gear oil to replace 85-90 that is called in the user manual?
I do not think that this would be a problem. The difference in viscosity is so small, it is most likely insignificant. The 80W-90 is slighly more versatile in it's range then the 85-90, it has the same high heat resistance the ';90'; , but ';slightly'; thinner (a little more lubrication range) going down to 80. The ';W'; represents that it can handle winter temps.
probably not. are you sure it's not 75-90 that is called for? it's much more common.
typically it's a GL5 whereas the 80-90 is a GL4 meaning there are friction modifiers in it that are not in the 80-90. you could wear out your gear box in short order like that.
yes cindy 80 gear oil will work,as a rue of thumb in a cold country
at winter time a small engine wil perform much better using a thinner grade of oil so the 80 will be fine and if in a hot country you can put 90 in ,drive safely,fron ron hughes the car doctor
Yes, it will just arrive in the engine faster.