Oil temperature?
Change your oil regularly and stop worrying.
I have an article, from American Iron, that I clipped from May '08. The basics are, this guy has a 2000 Fatboy w/a 113" engine. Long rides, high speeds (85-90 MPH) hours at a time, has an oil cooler. Oil temp shows 240-250. How can "I get my temps cooler?"
American Iron asked.."Why do you want to lower the temps....those are right on the money. If you can ride that fast for that long and only get up to 250, be happy."
I think most of us are safe.
Chuck the mensh
The Iclick theorum
The iwillfixthem4u method
The fabrik8r way
My 96" with no cooler ran straight up on the days in the mid high 90's. I guess I could call that 245.
Now with my 103 and cooler, I am seeing 1 or 2 hashes past the big hash where 180 is printed on the guage. I've been calling that 180 -190. When it hits the dot I call it 200. I haven't seen the 90's yet on this bike, but it do believe by what I have seen on the guage it is running 20 degrees cooler than my last bike with no cooler.
Whatever the real temp is, I did find that there was no relative difference between syns and dino oils on the guage.
The bike was an 010 Utlra with oil cooler and stock exhaust with the cats in the head pipes. The bike did not over heat. The rear cylinder deactivation did not kick in. I am sure the the stage before deactivation did kick in which is the ECM increases the afr to the rear cylinder.
We recorded 100 degrees as the low and 105 as the high from the weather each night on TV at the motel.
I was running 89 octane and not 91. I am a cheap @ss.
The oldest son was on an air cooled BMW RT1200R. He did not have trouble but said that the BMW felt like it was close to having trouble.
My youngest son was on a 06 Street Bob with stock pipes and a Cobra Fi2000r fuel programmer which puts the afr to 12.1 to 1. The 06 Bob was the first year with the rear cylinder shut down and it too did not shut down.
It has been a while since the manual, but memory is that the heads need to exceed 370 degrees to shut down the rear cylinder. Below that HD is not worried about engine heat.
I have three bikes with TC96's. The 07 FXSTC, 010 Ultra and 010 Dyna SG.
I ride these bikes all over the country since I retired. I just have not had a single issue with heat from them. I'm 70 and you younger tougher "bikers" should be able to to it better than me.
The trip totaled a little over 4,000 miles.
The HD's were running Syn 3.
Last edited by lh4x4; May 2, 2011 at 10:26 PM.
I have an article, from American Iron, that I clipped from May '08. The basics are, this guy has a 2000 Fatboy w/a 113" engine. Long rides, high speeds (85-90 MPH) hours at a time, has an oil cooler. Oil temp shows 240-250. How can "I get my temps cooler?"
American Iron asked.."Why do you want to lower the temps....those are right on the money. If you can ride that fast for that long and only get up to 250, be happy."
I think most of us are safe.
Chuck the mensh
Fabrik8r...Lighten up. It's an air cooled motor. In cooler temps, they run cooler. In hotter temps they run hotter. Stop and go, the temps go through the roof.
Why do you think the MOCO put the EITMS system into effect. They know these babies run HOT.
Use a good synthetic, change at every 5K, and enjoy the ride.
My RKC has been tuned and runs great. I still hit temps of over 250 in stop and go. Nature of the Beast.
The Best of Harley-Davidson for Lifelong Riders
The bike was an 010 Utlra with oil cooler and stock exhaust with the cats in the head pipes. The bike did not over heat. The rear cylinder deactivation did not kick in. I am sure the the stage before deactivation did kick in which is the ECM increases the afr to the rear cylinder.
We recorded 100 degrees as the low and 105 as the high from the weather each night on TV at the motel.
I was running 89 octane and not 91. I am a cheap @ss.
The oldest son was on an air cooled BMW RT1200R. He did not have trouble but said that the BMW felt like it was close to having trouble.
My youngest son was on a 06 Street Bob with stock pipes and a Cobra Fi2000r fuel programmer which puts the afr to 12.1 to 1. The 06 Bob was the first year with the rear cylinder shut down and it too did not shut down.
It has been a while since the manual, but memory is that the heads need to exceed 370 degrees to shut down the rear cylinder. Below that HD is not worried about engine heat.
I have three bikes with TC96's. The 07 FXSTC, 010 Ultra and 010 Dyna SG.
I ride these bikes all over the country since I retired. I just have not had a single issue with heat from them. I'm 70 and you younger tougher "bikers" should be able to to it better than me.
The trip totaled a little over 4,000 miles.

Why do you think the MOCO put the EITMS system into effect. They know these babies run HOT.
Use a good synthetic, change at every 5K, and enjoy the ride.
My RKC has been tuned and runs great. I still hit temps of over 250 in stop and go. Nature of the Beast.


