 15w40 vs 15w50 oil |
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| emerygt350 |
 Oct 9 2023, 10:07 AM
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#21
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Advanced Member  Group: Members Posts: 2,137 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States  |
Yes, what I mean is that it is just the oil temp. If your oil is 215 on a 40degree day it is going to have the same viscosity as 215 degree oil on a 90 degree day. That is all I meant.
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| Geezer914 |
Oct 10 2023, 11:02 AM
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#22
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Geezer914 Group: Members Posts: 1,441 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States 
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Reading posts on oil weight, a lot of people are running and questioning running 15w50 and 20w50 oil weight. Jake Raby posted that he builds his motors with clearances to run heavier weight oils and runs a 30mm oil pump. Driven DT50 15w50 oil was developed by Jake to run in his engines with larger clearances. So from other information it appears that running a thinner weight oil with normal clearances and a stock or 26 mm pump would be a better suited to my application. Porsche recommended 30w oil with standard clearances. So I am trying Drivin GP-1 15w40 and see what happens. Anyone running 30w or 10w30, please chime in. Mark runs 10w40 Delo oil, but he is in a colder climate.
Anyone needing Driven DT50 15w50 oil, check out the classifieds. 12qts. $170, 6 qts. $77, shipped. |
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