Marvel Mystery Oil....users?

[Steeveedee]

Originally Posted by davischevy

I wouldn't run it over full.

I agree with this, but also want to say that if he adds it and doesn't rev the begeebers out of the engine, he should be OK. FWIW, I rebuilt the engine in a 327 many years ago, which was in my '64 Impala convertible.

<moment of silence while I wish I still had that thing!>

Anyway, I reused the pickup screen on the new oil pump. I was slowing down (hard) one day, and the oil light came on when I was slowing down. I looked at the dipstick; yes it was full of oil. So, I got underneath and rapped the pan with a hammer. Sure enough, I got a tap back from that screen, where it was laying on the bottom of the oil pan. Long story short, I put in another quart of oil and drove it carefully for a few days until I had a chance to pull the engine out and fix that. One more quart in the pan didn't get the oil level high enough for the crankshaft to whip it into Valvoline meringue. You can even run Stoddard solvent https://en.wikipedia.org/wiki/White_spirit through your engine to dissolve sludge, but you better not drive it when you do that. It isn't a good enough lubricant to keep your bearings intact. I don't use that sort of stuff. I just rely on regular maintenance. I know guys that did, and they had some really nice looking engine oil when they checked it afterwards. It WILL dissolve a lot of sludge. I don't recommend it because it can dislodge a lot of carbuncles that can damage bearings, before they get to the filter. Best to use the proper engine oil to dissolve the crud in small enough pieces that the filter can remove them.