For cars under 100,000 miles, I am pretty sure the directions are to mix it with your regular oil. If it is dino, leave it in for 750 miles. If it is synthetic, leave it in for 1,500 miles. Then you do the "rinse" for 1,000 to 3,000 miles with dino being preferred.
The oil I have in my car now is Shell Rotella T 5W40 which is a group III oil. Shell calls it "full synthetic" but people on here call Group III oils "fake synthetic". I am going to do the "rinse" with dino, so no issue there.
Question is: "FOR GROUP III, DO I LEAVE AUTO RX IN FOR 750 MILES OR 1,500 MILES? I am thinking maybe go 1,000 miles, then do the rinse (I am 600 miles into the Auto Rx treatment phase right now). Anyone have an opinion?
[ August 24, 2003, 06:24 PM: Message edited by: CJH ]
The oil I have in my car now is Shell Rotella T 5W40 which is a group III oil. Shell calls it "full synthetic" but people on here call Group III oils "fake synthetic". I am going to do the "rinse" with dino, so no issue there.
Question is: "FOR GROUP III, DO I LEAVE AUTO RX IN FOR 750 MILES OR 1,500 MILES? I am thinking maybe go 1,000 miles, then do the rinse (I am 600 miles into the Auto Rx treatment phase right now). Anyone have an opinion?
[ August 24, 2003, 06:24 PM: Message edited by: CJH ]