Originally Posted by Quadancer

I'm going to argue this point people keep making.
1.) If the oil cooler is keeping your oil temps down, say 10 degrees or more, that is 10 degrees more headroom you have before overheat when you hit a jam.
2.) Every time in the traffic you move a bit, it's just that much more finned or block surface that loses some heat, giving you more time.
3.) Once you begin moving again, it helps get things back to normal sooner, so the engine spends less time under less pressure and overheated additives.

So YES, an oil cooler DOES help in traffic jams.

Originally Posted by ChickinOnaChain

I'd like to know but not enough to buy a temperature/dipstick. Whatever it is, there's not much I can do, other than just ride it when it's 90° or below. And oil coolers cost too much now days. But I had one on my '75. I'm not how much I worked.

Originally Posted by nytryder

10-20* is not really a difference maker. On my 103 engines one with and one without an oil cooler the maximum difference in the two was 13*. Fossil oil can easily tolerate 300*. Any full syn is good to over 400*. Try a Wards fan if you are truly concerned with engine wear. My oil cooler does nothing in traffic jams. At idle the engine pumps very little oil for the cooler to cool. Very little volume for very little oil to cool and about no air as well. An oil cooler will solve a problem that really isn't there.