Originally Posted By: Astro14
Originally Posted By: Phishin
Originally Posted By: Artem
I blame the ATF fluid which was used as a "cleaner"
For a few thousand miles, I added 1 quart of ATF to 4.5 quarts of oil. Nothing outrageous. I was using the Havoline Type III, I think it's called. Or ATF +3 or something like that.
What could have that done to my engine? I doubt much. It couldn't have done anything more than dumping a quart of Seafoam in the oil, which I also did. Now I got a quart of MMO on board. Now withe MMO, I'm running M1 10-40 High Mileage.
ARCOgraphite: Are you serious?
Wait...wait...Phishin...are you saying that you put a Quart of Seafoam in the oil? Running, what, 20% seafoam? For how long?
How much did Seafoam recommend? 1/3 of a bottle? 4 oz? and you went with 32 OZ?
You're lucky that all you have is a tick...that much Naptha and Alcohol in the oil....you could have easily thinned out the oil to the point of metal-metal contact in the key points: bearings and cam-lifter. I don't recall if the 350 that year still had teh flat-tappet cam, or if it was a roller...roller would be less likely to be damaged by solvent-thinned oil...if you're lucky, you can adjust the lash in the valve train out...if you're lucky...
NO, I only used 20% MMO in the oil. Before this MMO treatments....I did add a bottle of Seafoam to the crankcase. Bottle says 1.5oz per quart of oil. I got 6 quart sump, so that's 9oz. Yeah, I over dosed a little bit. I added 16 oz. So, almost double. I ran the Seafoam for like 400-500 miles, and then changed oil. I did this twice. This was when I was doing short OCI's (800 miles)....to clean quickly, yet fairly gently at the beginning since there was a lot of crud in the motor when I bought the truck.