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Originally Posted by blazee
update?
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750 miles on cleaning phase.
Engine developed a lifter tap from 500 to 700miles miles on the odometer.
Total oil in the system for my 1995 should be 4.5 quarts ONLY. I was almost a quart overfilled.
Turns out I shouldn't have overfilled the crankcase like that seeing the crank was slapping the oil a little much and causing air to be sucked into the oil system.
This air is hard to get out and takes several miles to get out of the system.
Since then, the engine is back to normal.
No startup tap at all. Cold starts are just as quiet as hot starts. This is impressive.
Took a look through the oil fill tube with a flashlight and I could not believe how much cleaner it was. It is not perfectly clean, but it is a lot better than it was at the start which was dark and gritty and sludged up.
Oil has only gotten slightly darker than the last shot you see above. But I know the oil filter is starting to get to its limit. Oil pressure is pretty high for the 65f temperatures we are having here. This is normal as all the crap in the system is filtered out through the oil filter as it should be.
I will keep you posted as I move closer to the 1500 mile limit which should be soon as I will be undergoing a long 16 hour road trip within the next month.
On another note, I also added Auto-RX to my GF's 1994 Cavalier VL with a 2.2L.
This car is showing much better improvement over my truck with this treatment. The engine is so quiet that I could not even BELIEVE it when I started it up after 1000 miles with the treatment.
This stuff works wonders on higher mileage inline 4 and 6 cylinder engines.
I will keep you posted.