Have a 1993 Suburban with a 200k, 350 engine. Got a trip from MT to NV next week, lots of up and down and going to be hot. Currently run 10/40w. With temps that high I sure would like to keep the oil viscosity up. Lots of mountains, etc.
I thought Lucas Oil Stabilizer but I see it gets no love here. Any other suggestions? Add a quart of straight weight to the oil change?
What think ye?
I thought Lucas Oil Stabilizer but I see it gets no love here. Any other suggestions? Add a quart of straight weight to the oil change?
What think ye?