OilPatch197
Well-Known Member
- Joined
- Sep 23, 2007
- Messages
- 1,400
- Age
- 96
- Vehicle Year
- 1984/87
- Transmission
- Automatic
I just parked my truck, walked down to the mailbox came up(about 3 min or so) and checked oil and I had white foam on the bottom half of the dipstick! Double checked it, kept getting milky stuff.
but I waited another 5 min and check it and the foam was gone!
I am running a '87 with Mobil 1 5w30 synthetic, it's got probably 1,000 mile on the oil.
The thing is, if it was oil, wouldn't it all be mixed up? separates that quickly?
The coolant system does loose antifreeze(but it seems to be an external leak, it leaks on the top of the thermostat housing, needs a new housing or machined)
but I waited another 5 min and check it and the foam was gone!
I am running a '87 with Mobil 1 5w30 synthetic, it's got probably 1,000 mile on the oil.
The thing is, if it was oil, wouldn't it all be mixed up? separates that quickly?

The coolant system does loose antifreeze(but it seems to be an external leak, it leaks on the top of the thermostat housing, needs a new housing or machined)