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Registered
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964 3.8L build motor oil
Howdy,
What is the recommended motor oil to use on a 964 that has been bored to 3.8L? I recently purchased and want to change the oil for obvious reasons but am unsure what is the best to run in here. Car is mostly canyon carver and street. Sent from my iPhone using Tapatalk |
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Moderator
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Quote:
for temps above 30F 10w-40, 15w-50, 15w-40 or 5w-40 syn : 5w-40 Shell TMO syn was the original factory fill except for early 964 which had 10w-30 TMO 20w-50 Just do some research as to the additive package, here you want ZDDP ~12-1300 ppm, more is ok, unless you care about the cat, but too much is also an issue, max ~1600+/- going the other way is more of an issue but at least keep it above ~1000ppm API SG was the category spec back in the day 964s were built, It's nla , so go by weight and additives
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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Administrator
Join Date: Sep 2000
Posts: 341
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Amsoil synthetic premium protect 20w-50 is all you need
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Banned
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Quote:
Last edited by IsobelWaelchi; 05-19-2024 at 09:44 PM.. |
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Racer
Join Date: Oct 2010
Location: Franklin, TN
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Driven XP-6 or XP-9 depending on clearances...
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