I changed the oil today in my 1990 Chevy K1500 truck with 350TBI.
4.5 quarts Rotella 15w40, and 30oz. total of Restore. You know, the silver can that comes in 4, 6, and 8 cylinder sizes.
It's supposed to even out and increase compression in old, tired engines.
Truck can burn a quart of oil in 200 miles on the highway!!
Cylinder #1 burns a TON of oil....fouls new plugs in 500 miles. 100 psi compression.
Cylinders #2-8 burn hardly any oil, plugs clean and tan after 30k miles. Compression between 148-155 psi in these cylinders.
I will post updated compression readings, and any changes in oil consumption, after 4000 miles.
4.5 quarts Rotella 15w40, and 30oz. total of Restore. You know, the silver can that comes in 4, 6, and 8 cylinder sizes.
It's supposed to even out and increase compression in old, tired engines.
Truck can burn a quart of oil in 200 miles on the highway!!
Cylinder #1 burns a TON of oil....fouls new plugs in 500 miles. 100 psi compression.
Cylinders #2-8 burn hardly any oil, plugs clean and tan after 30k miles. Compression between 148-155 psi in these cylinders.
I will post updated compression readings, and any changes in oil consumption, after 4000 miles.