250 Degree oil temp!
240 degrees is not uncommon oil temp on a hot day or idiling in traffic. If I where you I would use a high quality Synthetic Oil that is formulated for motorcycle use. AMSOIL or Mobil 1 V twin. Lots of folks on this site use Redline but it is not formulated for Mortorcycle use so I can't recommend it. Synthetic oils don't become volatile until they reach around 600 degrees and they will normally reduce the oil temp 20 to 30 degrees over dino oil. Good luck
I don't sell the stuff..........but I do use it,
240 degrees is not uncommon oil temp on a hot day or idiling in traffic. If I where you I would use a high quality Synthetic Oil that is formulated for motorcycle use. AMSOIL or Mobil 1 V twin. Lots of folks on this site use Redline but it is not formulated for Mortorcycle use so I can't recommend it. Synthetic oils don't become volatile until they reach around 600 degrees and they will normally reduce the oil temp 20 to 30 degrees over dino oil. Good luck
Synthetic oils don't become volatile until they reach around 600 degrees and they will normally reduce the oil temp 20 to 30 degrees over dino oil. Good luck
250* is about the limit I would go with dino oil. You would do better using a quality synthetic oil.
Synthetic oils don't become volatile until they reach around 600 degrees and they will normally reduce the oil temp 20 to 30 degrees over dino oil. Good luck
250* is about the limit I would go with dino oil. You would do better using a quality synthetic oil.
In my '06 Ultra, I have used HD 360, SYN3 and in Feb I switched to AMSOIL. The bike seems to run a little cooler with the synthetics, but NOT 20 to 30 degrees cooler.
The '06 Ultra hasan HD oil cooler and the highest oil temp Isaw with this bike last summerwas 242 degrees.
Our air temperatures should be 100 plus this weekend and I'm looking forward to seeing what oil temps I get with the AMSOIL.
The only "test" that I have been able to come up with to see if synthetic oil ACTUALLY runs cooler that 'ol dino oil is to compare my oil temperatureswith another bike's temperatures, when both bikes are operating in the same environment.
My wife rides a '00 FLHT with HD 360 oil. I have found thatthe '06 Ultrawith AMSOIL and without the lowers installed, runs almost exactly the same oil temps as the FLHT. If I use HD 360 in the Ultra, the oil temps are a few degrees higher than the FLHT. This is not "scientific" but about the best 'test' I have been able to come up with because it is "repeatable" and anyoneelse could do it.
Just ride your bike a few days with another bike, check the oil temps on both bikes at each stop. Record the oil temps on both bikes. Change your bike's oil from dino to syn (or vise versa) and ride a few more days while checking the two bike'soil temps. Then you will KNOW if there is actually any difference.
From what I have been able to tell, Synthetic oil does run a little cooler, but not much.
JMHO
The Best of Harley-Davidson for Lifelong Riders
Synthetic oils don't become volatile until they reach around 600 degrees and they will normally reduce the oil temp 20 to 30 degrees over dino oil. Good luck
250* is about the limit I would go with dino oil. You would do better using a quality synthetic oil.
I would be appalled at oil temps even as high as 250°, as even though a good synthetic can handle these temps, although any oil will oxidize faster as temps rise. Synthetic just has a higher threshold and can handle the higher temps better. I'm at 190° at cruise, up to 205° in traffic so far (85° ambient), but air temps will go up another 10° before summer is over. I do think I'm in good shape, but if I see them exceed 230° in any conditions, I will buy a second cooler and mount it on the downtubes. It would be simple to install in series with the existing cooler, and the thermostat will work the same as before. I kind of what to do it anyway, actually, just for the hell of it. Am looking now for a nice Jagg on Ebay for a good price.


