It's been 30K miles since I did the auto-rx treatment but never followed up with the 3 ounce maintenance dose. I just ordered another bottle the other day. Do you think I need to start from the beginning again and pour the entire bottle in or can I just begin a 3 ounce maintenance dose?
Full treatment or just maintenance dose?
- Thread starter jeepzj
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I would do a full treatment. I am an Auto-rx nut. I believe that frequent cleaning will prevent problems. I do an annual Auto-rx treatment.
Annual sounds a little anal to me
I don't think an annual Auto-rx treatment is necessary. After a full treatment of Auto-rx, just use the 3 oz. maintenance dose as intended to keep the engine clean. I decided on just doing a maintenance dose. My rear main seal is leaking oil again. It has returned after switching to synthetic after the auto-rx treatment I did 30K miles ago. I made the decision to go back to a good conventional oil for now on. Probably Castrol GTX or Havoline with a 3 oz. maintenance dose and a 5K mile OCI.
Actually my rear main seal did not start leaking again after switching back to synthetic. I switched back to Amsoil 10W30 and did not leak after 30K miles. As soon as I switch to German Castrol syn 0W30 is when it started to leak....took less than 1K miles. Back to conventional days with a good SM oil like Havoline....and maintenance dose of course.
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