I am very interested in getting an oil cooler but have been told it may lower your oil pressure, is it true? And if so what do you do about it? If its not true, can you recommend a good oil cooler. I own a deuce and the wife owns a dyna.

 

Nope, not true

The oil cooler is at the "end" of the oil cycle through the engine just before the oil filter. The oil pump will pressurize the whole circuit regardless off the oil cooler or not. Only thing you have to do is add a bit more oil to compensate for the volume in the oil cooler. (not that much anyway)

If this "myth" of lowering the oil pressure would be true, why would HD actually have one in their catalog.

Can't recommend one. I have the one from HD, only one available here in sub tropical Malaysia. Been on the bike for the past 3 years, no problems what so ever with oil pressure. Bike has about 22,000 KM (±16,000 miles I guess) on it at the moment.

 

Completely agree with Rakthi and will add that any oil cooler is better than none at all. I do however recommend a Jagg. www.jagg.com

 

I'll agree with these guys and disagree.

Just basic frictional affects and extra turbulance generated by passing through the system will lower the pressure......but an extremely small amount, not enough to make a difference, and certainly not enough to do any damage.