In a message dated 10/26/2005 8:55:41 PM Pacific Standard Time, gjwolfe at telus.net writes: > Bentley shows 15W40 being OK for about 10 to 85F or -15 to +30C. > Shows 10W30 OK for about 0 to 60F or -20 to +15C. > Diesel engines only. > So what are you supposed to use when it's -30F? ;-) ATF? ;-D Loren