Hot Oil
Road Warrior
Joined: Dec 2012
Posts: 1,335
Likes: 5
From: CT
I have to ask where the heat that is being blown off the motor goes? From the pictures shown here it looks like its blown right on the riders thigh. I would rather the motor be hot then my leg. And where did you come up with 250 degrees being deadly for conventional oil? Most conventional oil have flashpoints over 360 degrees.
Sent from my Galaxy Nexus
Road Warrior
Joined: Dec 2012
Posts: 1,335
Likes: 5
From: CT
Sent from my Galaxy Nexus
I have to ask where the heat that is being blown off the motor goes? From the pictures shown here it looks like its blown right on the riders thigh. I would rather the motor be hot then my leg. And where did you come up with 250 degrees being deadly for conventional oil? Most conventional oil have flashpoints over 360 degrees.
But what does the flashpoint have to do with anything? Flashpoint is the lowest temperature at which a vapor above a liquid will ignite when a flame is applied under standard conditions, not the point at which it will spontaneously ignite.
The flashpoint of gasoline is -45°F. 45 BELOW zero.
Mobil1 is 435°F.
And for the record, I have never had a problem with oil temperature.
Know why?
I've never had an oil temperature gauge.
Extreme HDF Member
Joined: Dec 2007
Posts: 13,402
Likes: 941
From: Illinois
Fact: HD tests it's engines at the Chrysler Proving grounds in the Arizona desert
They idle them for 24hrs . Always passes the tests.
It is the riders that have varying degrees of tolerance. Doesn't bother some and drives others insane from the heat.
Now back to the fan. It only aids cooling while you are idling. At road speeds the passing air is more powerful than the fan. That is when an oil cooler aids the motor temps.
So do both. When idling fan on. Down the road oil cooler.
I ride 30K a year. Rarely is the bike at idle. Do you ride or sit around listening to the engine?
They idle them for 24hrs . Always passes the tests.
It is the riders that have varying degrees of tolerance. Doesn't bother some and drives others insane from the heat.
Now back to the fan. It only aids cooling while you are idling. At road speeds the passing air is more powerful than the fan. That is when an oil cooler aids the motor temps.
So do both. When idling fan on. Down the road oil cooler.
I ride 30K a year. Rarely is the bike at idle. Do you ride or sit around listening to the engine?
Ultimate HDF Member
Joined: Dec 2006
Posts: 5,878
Likes: 17
From: The Desert SouthWest
Under normal temps I never exceed 210-220* on a long freeway run on an 80* day.
The single most efficient factor is by far the FCS fans. The oil cooler would be next. Stage One helps a bit but those two things dominate in the cooling equation.
Last edited by Arizona; Nov 24, 2013 at 07:41 PM.
Supporter
Joined: Aug 2008
Posts: 5,189
Likes: 16
From: N.E. Wisconsin
I run the Reefer twin fan assisted oil cooler and have a little green light that comes on when the fans for the oil cooler comes on. Whenever the green light comes on I then switch on my LaNale cylinder head fan. When light goes off I switch off the CHF. I also run Mobil 1 20w50 v-twin oil and have the PC5 set rich with no CAT and straight thru 2 1/4" slipon, also have an 1 1/2" tank lift. And to back all that up is the factory EITMS.
Last edited by drukanfu; Nov 24, 2013 at 08:02 PM.
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Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
People are getting rich scaring Harley owners into thinking their bikes are going to melt. Harley sells bikes in the Arizona desert with a 2-year, unlimited-mile warranty. They don't change the ECM programming, nor do they add fans, nor do they reduce the oil change intervals.
