1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

oil

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Old 02-22-04, 05:23 PM
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recycled teenager

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oil

one of youpeople said 30 wt oil was anono. whats yes yes brand weight???
Old 02-22-04, 06:18 PM
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I run 20-50wt castrol in the summer and 10-40wt in the winter.


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Old 02-22-04, 06:37 PM
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There is a label under the hood and the same chart is in the manual. I follow that and I'm using 20w50 right now. Only had the car a week though.

From reading the links in the FAQ in this section, you also need to be sure to get regular oil. No additives, no synthetics, just the "dead dinosaur". It burns better.
Old 02-22-04, 06:49 PM
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No additives? Since when
Old 02-22-04, 06:54 PM
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20W50 is recommended--- unless you live in the colder climes (ie: places like Minnesota, Northern New England, Montana).

Even then, you can still use 20W50 from the beginning of April through about mid-October. But once temps begin dropping below about 20F or -5C the 20W50 will be too heavy on start-up. Use 10W30 during the winter months.

BTW, 10W40 has more additives than 10W30. If you're still running the stock metering-oil pump and therefore using crankcase oil to lube the apex seals it's best to avoid 10W40--- too much build-up on the rotors and in the seals. I'd go with 15W40 or 10W30 for winter, and 20W50 for all other seasons.
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