Which oil thread?
10-28-2011, 12:08 AM
#19
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10-28-2011, 09:02 AM
#21
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10-28-2011, 06:23 PM
#23
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Not always a great idea to use a Racing oil for a street car.
Last edited by 333pg333; 10-29-2011 at 04:04 AM.
10-29-2011, 04:03 AM
#25
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VR-1 is fine. Some race oils don't have quite the same ZDDP / detergent / and other 'stuff' / package and need to be changed out more regularly.
10-29-2011, 10:32 AM
#26
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I bought 2 cases of VR-1 20-50w after reading many threads discussing this matter and thought I was "enlightened" on the subject. Then I recently read an article (http://www.bobistheoilguy.com/motor-oil-101/) descibing how on start-up oil viscosity was much more important to preserving an engine then operating weight (to an extent). A 20-50w may be better for the track where operating tempatures remain high and start and stop is limited but for my street only that sits more then anything I thought a lighter weight "start-up" oil might be better?
I now think I'll run Mobile Racing 0-50w as the only drawback I can see is the effect of the added ZDDP on my cat...if I had one. Since the PO used Mobile as well, it seems right.
Thoughts?
Last edited by teamcrossworks; 10-29-2011 at 11:05 AM.
10-29-2011, 10:35 AM
#27
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10-29-2011, 01:31 PM
#28
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i picked up a 5 quart jug of Mobil 1 0w-40 for 26 bucks at walmart and mixed it with two quarts of 0w50 Racing Oil for winter.
see posts #21 and #22...
https://rennlist.com/forums/968-foru...tic-oil-2.html
here's a comparison of a few typical synthetics...
oil/SAE grade ................... visc @ 104° F............................. visc near running temp / 212° F
Redline 15w50 ....................... 138 ............................................... 19.6
Mobil 1 15w50 ....................... 125 ............................................... 18
Mobil 1 5w50 Rally Oil .............. 108 ............................................... 17.5
Mobil 1 0w50 Racing Oil ........... 100 ............................................... 17.2
Mobil 1 10w40 ........................ 96 ................................................ 14.7
Mobil 1 0w40 .......................... 75 ................................................ 13.5
10-30-2011, 04:19 AM
#29
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10-30-2011, 07:44 AM
#30
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Don't believe everything you read in BITOG. It's as subjective as many practitioners of M1.
Last edited by 333pg333; 10-30-2011 at 08:33 AM.