Oil capacity with an oil cooler
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Cruiser
Joined: Jul 2021
Posts: 140
Likes: 20
From: Oklahoma
Oil capacity with an oil cooler
I have an oil cooler that I have yet to install on my 2021 Forty Eight as I'm waiting for the dealer to recieve and install a new tank for me since Mr. Magoo decided he wanted the lane I was in. But I have a question about running the said oil cooler. Will I need to increase my oil volume to make up for what will be in the channels of the cooler?
Seasoned HDF Member
Joined: Aug 2017
Posts: 7,528
Likes: 12,142
From: Indianapolis
I have the Jaggs 6 row on my '17 and I have always drained the oil, rocked the bike side to side a few times to drain out all I can, and replaced the filter. I pour in 3 quarts of oil and have never had an issue in almost 27,000 miles.
I recently changed out the black rubber oil lines running to the cooler with braided stainless steel ones. Very little oil drained out of the cooler, it was such a small amount I didn't even bother to add any oil back. Still reads full on the dipstick.
I recently changed out the black rubber oil lines running to the cooler with braided stainless steel ones. Very little oil drained out of the cooler, it was such a small amount I didn't even bother to add any oil back. Still reads full on the dipstick.
Road Master
Joined: Nov 2006
Posts: 1,067
Likes: 339
From: Northeastern Indiana
It's not enough to worry about ... do the regular oil service and ride it ... Harley motors are dry sump, meaning they run on around a cup or two of oil in the motor,, the rest is in the tank ... the cooler doesn't use enough to change anything
Seasoned HDF Member
Joined: Aug 2017
Posts: 7,528
Likes: 12,142
From: Indianapolis
In hot 90*F or higher temps at Interstate speeds (70 mph) I was seeing oil temps right at 250*F, too hot IMO. After adding the oil cooler I'm lucky to see 220*F under the same conditions. Worth every penny IMO.
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Cruiser
Joined: Jul 2021
Posts: 140
Likes: 20
From: Oklahoma
Not sure if they were always needed but with the lean AFR Harley has been subjected to it does make a difference in engine heat and you can tell by feel and sound when the engine is getting too warm. I tend to ride long miles (which makes one wonder why I ride a Forty Eight) and I have experienced this first hand as anyone who is running the lean standards no doubt has.
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Thread Starter
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Cruiser
Joined: Jul 2021
Posts: 140
Likes: 20
From: Oklahoma
Thanks as I do tend to over think things and the previous comment had me rolling my eyes at myself...