Valvoline Restore & Protect oil, stat!
I do like Valvoline R&P and it is in fact cleaning up two older, normally aspirated cars I have with oiling and ring issues, installed in one Lexus and one older Acura (Isuzu).
Oil burning around 150k, although switching to Valvoline Restore & Protect I've basically eliminated it. Seems to be related to carbon buildup in the low tension rings.
An oil change to Liqui Moly 5w40 worked wonders for mine. Still zero lifter tick after about 1500 miles. Highly recommend.
Liqui Moly Top Tec 4200. I buy it from FCP and return my used oil in the same container and get 100% of my money refunded through their lifetime warranty program.
On the recommendation of my mechanic in reply to my quest to eliminate hot lifter tick in my 89K 1.6, Liqui Moly 5w40. Hot lifter tick is still nonexistent 1500 miles in.
Liqui Moly Molygen 5w40. Not cheap but I swear by it, made the engine quieter too
Just another clean option to compete with Valvoline.
Legit. Worst case scenario it doesn't do anything, but I've seen some improvement in my Cadillac ELR. Engine is quieter and lots of sludge was removed. But fwiw lots still remains and the varnish is basically untouched.
I used that once years ago in my 2011 Limited on Stage 2. What a waste of money.
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