LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related
View Poll Results: Which oil?
Catrol GTX
19
10.92%
Quaker State
5
2.87%
havoline
1
0.57%
valvoline
19
10.92%
penzoil (****ty oil)
6
3.45%
Mobile 1 synthetic
103
59.20%
Other synthetic
15
8.62%
other...
6
3.45%
Voters: 174. You may not vote on this poll

Which motor oil?

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Old 09-16-2010, 11:18 AM
  #61  
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Join Date: Nov 1998
Location: Louisville, KY
Posts: 2,761
The Geman Castrol synthetic 0W30 has tested as being perhaps the best oil to use in in the LTX engines, and I think in the LSX engines as well. This info comes from the bobistheoilguy site. Lots of knowledable people there, and they actually test the oils and lubricants instead of saying this brand works good in my car.
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Old 09-18-2010, 11:00 PM
  #62  
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Join Date: Mar 2002
Location: Canyon Country, Ca.
Posts: 173
Mobile 1 0W-40

Mobile 1 0W-40. 270,000 miles and still going strong.

Last edited by wbacall; 09-18-2010 at 11:02 PM.
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