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Jun 14th, 2026
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Joined: Feb 2019
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Talk Morgan Enthusiast
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OP
Talk Morgan Enthusiast
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I have a 2018 M3W and have added an inline oil cooler under the bonnet with a temp controlled fan and an oil temp gauge. It also has the urban cooling fan. In May went to the DGR in Charlotte NC and the temp was in the mid 90's (and humid). Never went slow enough for the urban fan to work, but never fast enough to get good air flow. The oil temp was between 240-250! WOW it looked crappy when I changed it out!
BTW, sorry I have not been on the site much, I retired last year and I do not seem to have as much free time!
Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys
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Talk Morgan Expert
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Talk Morgan Expert
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Not sure if you are expecting a response or not but I suppose my response would be that 240-250 is not excessively hot, did your oil cooler fan come on, what temp setting is your oil cooler thermostat set at and what is the definition of looking crap, if it was a dark color that's normal? The Urban Cooler fan won't come on unless you are stationary or going under 12mph.
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)
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yes the fan was running all the time. Darker than normal (I have 16000 on the M3W and had HD's for years). And yes, too fast for the urban cooling fan and too slow to really cool. Normally, the oil is about 200-210
Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys
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Talk Morgan Addict
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Talk Morgan Addict
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I have a 2018 M3W and have added an inline oil cooler under the bonnet with a temp controlled fan and an oil temp gauge. It also has the urban cooling fan. In May went to the DGR in Charlotte NC and the temp was in the mid 90's (and humid). Never went slow enough for the urban fan to work, but never fast enough to get good air flow. The oil temp was between 240-250! WOW it looked crappy when I changed it out!
BTW, sorry I have not been on the site much, I retired last year and I do not seem to have as much free time! where is the cool air for the inline oil cooler coming from, under the bonnet? is the air being pushed back under the bonnet?
Last edited by LightSpeed; 09/08/22 02:14 AM.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Talk Morgan Expert
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Talk Morgan Expert
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As Stephen suggests the location of the oil cooler fan and the air flow created might be helping in the heating of the oil in certain conditions especially as you say it was running all the time. A running oil temperature of 200 - 210 when the engine is up to proper running temperature seems a bit on the low side, should be around 220 - 230.
Last edited by britmog; 09/08/22 04:41 PM.
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)
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Joined: Nov 2017
Posts: 101
L - Learner Plates On
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L - Learner Plates On
Joined: Nov 2017
Posts: 101 |
From the Mobil 1 V-Twin 20W50 webpage webpage FAQ: How is Mobil 1™ V-Twin 20W-50 motorcycle oil different from Mobil 1™ for passenger cars?Mobil 1™ V‐Twin 20W‐50 fully synthetic motorcycle oil is designed for air‐cooled, large‐displacement bikes. Because of their design, these engines can generate very high localized oil temperatures and high overall bulk‐oil temperatures. A typical air‐cooled V‐twin's rear cylinder gets a lot hotter than the front cylinder – it's a matter of airflow. When it's hot out and you're stuck in traffic, the oil temperature in a bike climbs rapidly. Above about 250 degrees Fahrenheit, conventional motor oil is going to break down. Mobil 1 V‐Twin 20W‐50 fully synthetic motorcycle oil is good to above 300 degrees Fahrenheit. Like Mobil 1 Racing™ 4T 10W‐40, Mobil 1 V‐Twin motorcycle oil has high levels of phosphorus/zinc and the same high‐temperature detergent technology for superior wear protection and engine cleanliness, even at elevated oil temperatures. With Mobil 1 V‐Twin motorcycle oil, you can go the full length of the manufacturer's recommended oil change intervals with ease. I would fret too much about 240-250 F if the oil's good to 300+
Scott
2018 M3W
1995 Porsche 993
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