motor oil
Had a 1976 L-82, 4-sp
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From: Some days your the dog and some days your the hydrant.
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Drifting
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Le Mans Master
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Drifting
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Le Mans Master
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I'd say, probably, yes. Stock springs are relatively low pressure and after 50 years more so. Looks like 957 parts Zinc. 1000 is kinda the min standard, so it's pretty close. Mobil one 0w-40, which you can get a walmart in a 5 qt jug, has 1100 PPM of zinc. It's synthetic not conventional.
High mileage oils mostly has seal conditioners that tend to swell the rubber a bit to help with leaks, some additional detergents to help with any sludge build up in the engine as well.
Given the choice I'd go with the 0w-40 first.
There is also Mobil one's 15w-50 that has 1300 PPM of zinc.
https://pqia.org/stp-high-mileage-sae-5w-30-motor-oil/
High mileage oils mostly has seal conditioners that tend to swell the rubber a bit to help with leaks, some additional detergents to help with any sludge build up in the engine as well.
Given the choice I'd go with the 0w-40 first.
There is also Mobil one's 15w-50 that has 1300 PPM of zinc.
https://pqia.org/stp-high-mileage-sae-5w-30-motor-oil/
Last edited by REELAV8R; May 26, 2022 at 12:03 PM.
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Just a comment about the information in that link above - That information is way out of date and pretty much obsolete. The high ZDDP oil formulations (CJ-4 standards) shown in the specs are actually no longer available. The Diesel motor oil specifications have all been changed a few years ago due to new regulations on diesel engine manufacturers. All new diesel trucks get equipped with emission controls (not compatible with high zinc oils) now so the current oil standards removed the high ZDDP additives out of the diesel oils. Current diesel oil formulations do not offer the ZDDP benefits the older ones did. Same brands, same names, but no more heavy ZDDP.
Drifting
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I have noticed many conventional oils have vanished over the years. Castrol GTX 5-30 was my go to for many years and was used in nearly all of my vehicles, but it has been replaced by a lesser version. This was my stimulus to finally go full synthetic in everything.
Le Mans Master
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From: Loveland
0w-40 would be good if you want to drive in a cold climate,,,, but the 0 degree rating isn't a good thing if you drive in the south or only drive your car in the summer.
Last edited by kodpkd; Jun 1, 2022 at 09:08 PM.
