Would there be any advantage or disadvantage to adding a few ounces of Auto-RX (maintenance dosage) at each oil change on a 1.8T which uses synthetic oil (Mobil 1 Euro)? The first 20K miles were dino on a 3K mi / 5K km OCI; the last 10K miles have been Mobil 1 on the same OCI.
Auto-RX maintenance w/ Mobil 1 0W-40?
- Thread starter John_E
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