For years I used "motorcycle oils" that cost between $7-10 per quart, until I discovered Rotella. I will continue using Rotella T4/T6 15w40 in my shared sump dirt bikes until I have good reason to change. They are in the spec'd viscosity range, they meet the performance specs of MA/MA2, and at $12/$19 per gallon it is impossible to beat the quality and price. My only "problem" is... I like the smooth shifts with T4 but I like the full synthetic durability of T6, and T5 semi-syn is not labeled as MA/MA2. So I mix T4 and T6 50/50 with awesome results.
Diesel 15W-40 for dirt bike
- Thread starter Mark R.
- Start date
I also mix T6 and T4 50/50 for my KLR250 and the Yamaha Roadliner and did use it in a Suzuki C50. In just over 65000 miles between them I have never had any engine, gearbox or clutch problems.
Plus 100. And it's so cheap/the capacities so small you could change it every weekend if you wanted to (not that you'd need to). Three Hondas, a Yamaha, a Kawasaki, and a KTM all ran great on it.
