[Grady Clay]

Unfortunately they are built for that – sorta.

A 911 engine will withstand incredible abuse. It isn’t necessary and is counter productive to engine longevity.

As Jack says, it is driving dependent.
Jack, what do you have for cooling?

By ’69 Porsche recognized the need for a front oil cooler on a 2.0 911S. In ’75 they were constrained with noise regulations. Through too many years the bean counters also limited the engine cooling.

Here we are 20+ years later re-engineering our 911s. What to do?

Install the 1.82:1 engine fan. Install the largest thermostat controlled front oil cooler(s) with electric fan(s). Pay attention to your engine temperatures. Too much heat is a killer.

Many suffer this undetected abuse because great valve stem seals prevent oil passage and of catalytic converters burning the excess oil when the guides fail

Best,
Grady