Quote:
Originally Posted by Diseasel300
You can try some Mobil-1 full synthetic for a couple thousand miles and see if it helps (Italian Tuneup does help, one of the absolute worst things you can do for a car is drive it like "Grandpa").
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I don't have access to the vids / audio.
Hammering on an engine will do _nothing_ to solve a mechanical problem and could make it worse. The "run it hard" is from the days of leaky / rich running carburetors.
Drive the car normally, turn it off , let it cool, pull the spark plugs. If they are white / tan, you are driving just fine.
Does this car get many short run / drive cycles? These engines tend not to like many start the motor, run a minute, shut off. My 97 C280 165 K miles ( pretty much the same engine as yours ) has a light intermittent lifter tap that I'm leaving go.
Changing oil type isn't going to help as you have tried thin / thick. There is a check valve in the lifter, when this fails to fully seal the lifter will bleed down causing too much lash. General valve train wear contributes to noise as well. Drive the car as you have been. Also, what climate are you in? 15 - 40 is kind of thick for cold climates.