Hi all - Picture attached of my RX330 front valve cover. I was surprised to see this varnish. Previous owner had a history of taking it to the dealer every 6 months. I have been changing oil every 4-5months which has included 4 oil changes with Valvoline Restore and Protect.
Thinking of running Mobil 1 ESP 0W30 to clean up this varnish - its unclear if Valvoline Restore and Protect has helped but we can be sure its helped the rings.
I know this is relatively harmless, but would love it squeaky clean. Is Mobil 1 ESP 0W30 the way to go?
130k miles on the vehicle.
Thinking of running Mobil 1 ESP 0W30 to clean up this varnish - its unclear if Valvoline Restore and Protect has helped but we can be sure its helped the rings.
I know this is relatively harmless, but would love it squeaky clean. Is Mobil 1 ESP 0W30 the way to go?
130k miles on the vehicle.