Originally Posted By: jorton
Originally Posted By: dannyd
Why would you use 10w40 in an engine designed for 30?
5w30 and 10w30 thin to borderline 20 weight oil, or thinner after 1000 - 2000 miles of use because they're "energy conserving" grades. That may be ok in your 62 I don't know.
....
No. No they don't. And 10w30 especially does not shear all that much...
For the thread, 5W/10W-30 MaxLife would be fine...
Only use anything heavier after seeing if these reduce consumption first...
Originally Posted By: dannyd
Why would you use 10w40 in an engine designed for 30?
5w30 and 10w30 thin to borderline 20 weight oil, or thinner after 1000 - 2000 miles of use because they're "energy conserving" grades. That may be ok in your 62 I don't know.
....
No. No they don't. And 10w30 especially does not shear all that much...
For the thread, 5W/10W-30 MaxLife would be fine...
Only use anything heavier after seeing if these reduce consumption first...