Varnish

Joined
Jun 12, 2005
Messages
5,869
Location
North Texas
 Originally Posted By: TedSexington
How can you get rid of varnish? Looking through the oil fill hole I can see varnish and btw is it harmful to the engine?
I would take varnish over sludge....eventhough it looks ugly when you take off the valve cover.
 
Joined
Apr 5, 2009
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Location
CA.
 Originally Posted By: ARB1977
 Originally Posted By: TedSexington
How can you get rid of varnish? Looking through the oil fill hole I can see varnish and btw is it harmful to the engine?
I would take varnish over sludge....eventhough it looks ugly when you take off the valve cover.
A big +1 to that! Varnish is pretty much harmless. We've had good luck with MMO slowly removing it. Try adding a pint to the oil about 1000 miles before you change your oil, over time it will clean it up. Or run a good synthetic and forget about it, in time something like PP should clean it up. AD
 
Joined
Apr 30, 2003
Messages
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Location
Ontario, Canada
Any oil changed regularly will slowly remove varnish. Some will dissolve and some will flake off. I've seen a varnished engine come 50% clean after about 50,000 miles of regular changes.
 
Joined
Jul 3, 2005
Messages
36,250
Location
NY
 Originally Posted By: Dyoel182
A little discoloration never hurt anything.
+1 some oils even stain engine internals, totally harmless.
 
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