Mobile 1
#32
06-10-2019, 05:54 PM
Cruiser
Anything else will destroy your engine within a mile.
#33
06-11-2019, 04:19 PM
Seasoned HDF Member
Pure Astroglide is recommended for small bore long stroke engines
#34
06-11-2019, 04:34 PM
Seasoned HDF Member
Here's a virgin oil sample of each, tested by CTC Analytical Services of Phoenix, AZ.
Silicon: - M1 15W-50: 9ppm .........M1 V-Twin 20W-50:10ppm
Boron: - M1 15W-50: 228ppm .........M1 V-Twin 20W-50: 188ppm
Sodium: - M1 15W-50: 13ppm......... M1 V-Twin 20W-50: 3ppm
Magnesium: - M1 15W-50: 43ppm....... M1 V-Twin 20W-50: 538ppm
Calcium: - M1 15W-50: 2464ppm........ M1 V-Twin 20W-50: 1899ppm
Zinc: - M1 15W-50: 1315ppm......... M1 V-Twin 20W-50:. 1352ppm
Molybdenum: - M1 15W-50: 90ppm...... M1 V-Twin 20W-50: 0ppm
Looks pretty good to me.
Silicon: - M1 15W-50: 9ppm .........M1 V-Twin 20W-50:10ppm
Boron: - M1 15W-50: 228ppm .........M1 V-Twin 20W-50: 188ppm
Sodium: - M1 15W-50: 13ppm......... M1 V-Twin 20W-50: 3ppm
Magnesium: - M1 15W-50: 43ppm....... M1 V-Twin 20W-50: 538ppm
Calcium: - M1 15W-50: 2464ppm........ M1 V-Twin 20W-50: 1899ppm
Zinc: - M1 15W-50: 1315ppm......... M1 V-Twin 20W-50:. 1352ppm
Molybdenum: - M1 15W-50: 90ppm...... M1 V-Twin 20W-50: 0ppm
Looks pretty good to me.
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Max Headflow (06-22-2019)
#36
06-11-2019, 07:56 PM
Tourer
It doesn't matter what forum you are on, guys are passionate about their oil. I have tried many brands and weights and without question, the V-Twin 20w-50 Mobil-1 oil is the oil to use in these air cooled engines. It holds up to the heat yet allows for a cold start. It doesn't break down like any of the other oils I have tested.
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xcbullet (06-11-2019)
#37
06-11-2019, 07:58 PM
Road Warrior
Join Date: Apr 2012
Location: Northern Los Angeles area.
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Zonktified (07-01-2019)
#38
06-22-2019, 02:05 PM
Road Warrior
https://540ratblog.wordpress.com/201...-test-ranking/
540 ratblog confirm it for me the 20-50 fails at 75,855psi and the 15-50 @ 70,235
540 ratblog confirm it for me the 20-50 fails at 75,855psi and the 15-50 @ 70,235
Last edited by xcbullet; 06-22-2019 at 03:38 PM.
#39
06-22-2019, 02:36 PM
Join Date: Jan 2011
Location: Southeast Michigan 15 Minutes East Of Hell
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You forgot Castor Oil. ;>)
#40
06-22-2019, 03:11 PM
Road Warrior
Castrol gtx was one of the higher ranked oils in 20-50, 96,514psi. He didn't rank VR1 in a 20-50 though which would be nice to see in his test.
Last edited by xcbullet; 06-22-2019 at 03:37 PM.