Dino oil reduced my oil consumption.

[Chris142]

Who wudda thunk it?

My 4-stroke quad has alot of hours on it and was using synthetic 10w-40 at about a qt in 100 miles.

I tried switching to 20w-50 Mobil-1 and Amsoil 20w-50 motorcycle oil which slowed the consumption to about 3/4 qt in 100 miles.

I get fed up with dumping expensive oil in the thing daily so the last time it was low I drained it and put El Cheapo Napa 20w-50(valvoline) in it.

I'll be darned if It almost completly quit using oil! Ive put over 450 miles on the thing in 2 weeks and have only added 1/2 qt!

It doesn't foul the plug and has good compression. I'm thinking the valve guides or seals are bad on the exhaust valves.

Why would Dino oil cause this?

 

[sjlee]

Actually, I've heard that same thing before. I'm not positive, but I think it's because the dino oil conditions the seals better than synthetics. I'm sure someone can better explain it... otherwise, if you search the forums, I think you'll find other threads that have the answer you're looking for.