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|11-28-2017, 09:18 PM||#11|
Join Date: Oct 2007
Location: Toledo Ohio
Vehicle Year: 2000 2005 199
Vehicle Make: Fords
Vehicle Model: Rangers Taurus SHO 5spd
I use this vehicle for: going to Cabelas
My credo: get outta my way, I'm falling!Rep Power: 26
at what temperature does a multi-viscosity oil operate most efficiently?
my guess would be somewhere close to 192 degrees. (89 C)
perhaps we should ask Bob the oil guy
|11-28-2017, 11:14 PM||#12|
Join Date: Aug 2016
Vehicle Year: 1994
Vehicle Make: Mazda
Vehicle Model: B3000Rep Power: 5
At some point Ford discovered (they pioneered the hotter running engines, so I hear) that running engines at 197 degrees kept the moisture unburned fuel out of the oil and engines actually last longer running this way. They are also more efficient because your combustion temperature is closer to the temperature of the cylinder walls at higher temps, which means more combustion is transfered to work than to your coolant.
Then there is the computer. Your car is tuned to run at the temperature that it was designed to run.
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|11-29-2017, 01:55 PM||#13|
Join Date: Oct 2009
Location: Midwest City, Oklahoma
Vehicle Year: 1998
Vehicle Make: Ford
Vehicle Model: Ranger
I use this vehicle for: EverythingRep Power: 0
My Lightning, like all Lightnings, came with a 180. Mine has a 170 now. Net affect was a slight drop of the needle on the gauge.
Some years ago I had tried putting a 160 in the Ranger. Got the code telling me operating temperature was not warm enough for the computer to make the switch from Open Loop to Closed Loop. Put the 180 back in, deleted the code. Been fine since.
I'd never run without a thermostat. That's just dumb.
Oh, also been running 20W-50 oil in the Ranger the entire 18 years I've owned it. Used to be the local oil shops would change it. Now they tell me it is a 5W-20 motor, and refuse. They are so ****ing stupid. I don't even recall 5W-20 oil existing in 98.
My Lightning is a 5W-20 motor, and I use 10W-30 in it. Gone back to changing the oil myself since the stupid shops refuse to if you don't want colored water in your crankcase. And that's what 5W-20 oil is, colored water.
1998 3.0 Ranger Sport
2004 Ford SVT F-150 LIGHTNING
2006 Suzuki M109R
2008 Suzuki B-King
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