I've been using LC20 now for a few oil changes, and I've followed their directions and put in 1 oz for each quart, etc., but I've been wondering about severe cases. A friend of mine has a VW with 67k miles that's using a good amount of oil. We've put in AutoRX for now, and we'll see if that works, but I was wondering what LC20 might do. Has anyone tried a higher dosage than recommended to good effect?
Best,
ET16
Best,
ET16