Under what circumstances would it be acceptable to run 20W-50 oil in a 4.7L?
Reason: I just bought 24 qts of Lucas Synthetic 20W-50 for $1/qt. It was on a clearance "sidewalk sale" table at Pep Boys (along with a bunch of other odds and ends.)
I drive in hot climates. Engine has 250k miles on it.
If I can't use it for the Tundra, I have other uses for it.
Reason: I just bought 24 qts of Lucas Synthetic 20W-50 for $1/qt. It was on a clearance "sidewalk sale" table at Pep Boys (along with a bunch of other odds and ends.)
I drive in hot climates. Engine has 250k miles on it.
If I can't use it for the Tundra, I have other uses for it.