Oil Cooler overhaul.

[Pinecone]

On 4/20/2022 at 12:34 PM, A64Pilot said:

As with anything new there are naysayers, when Mobil came out with the first car syn there were a great many that came out with all kinds of reasons why it was bad, like you can’t break in an engine with it, if you put in a car without xx thousand miles it will burn oil forever, it will make your engine leak oil, and as you say it will break loose sludge and plug oil galleys and your engine will be destroyed by oil starvation even though you have pressure.

There were some issues with the early full synthetics.

The leaking did happen.  The convention oils had some light fractions that caused seals to swell. After a lot of miles, the seals were worn a bit.  Full synthetic, the seals shrank and leaked.  So they added a bit of light fraction to keep the seals swollen.  But that hasn't been an issue in 40+ years