stangeba Posted September 13, 2023 Share Posted September 13, 2023 What Engine Oil do you use in your Monte Carlo, synthetic Oil or Conventional oil? 1 Quote Link to comment Share on other sites More sharing options...
stangeba Posted September 13, 2023 Author Share Posted September 13, 2023 Next I may ask what weight you use, 10W30 or ???? Quote Link to comment Share on other sites More sharing options...
EVC Posted September 13, 2023 Share Posted September 13, 2023 Conventional … Lucas hot rod oil, 10w30 winter, Lucas10w40 summer…. High zinc. Quote Link to comment Share on other sites More sharing options...
Marks71 Posted September 13, 2023 Share Posted September 13, 2023 Valvoline VR1 10w40 high zinc. Year round. (California) Quote Link to comment Share on other sites More sharing options...
jft69z Posted September 13, 2023 Share Posted September 13, 2023 May want to add another category Bruce, Semi-synthetic. I use Brad-Penn 10w-40 semi-synthetic in the old cars. (Monte has a solid lifter cam in the LS6 454) Newer LS based cars get Mobil1 5w-30. 1 Quote Link to comment Share on other sites More sharing options...
DragCat Posted September 14, 2023 Share Posted September 14, 2023 39 minutes ago, Marks71 said: Valvoline VR1 10w40 high zinc. Year round. (California) I use this in my blue oval stock engine. I use the "recommended" in my crate 1 Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted September 14, 2023 Share Posted September 14, 2023 I use the lucas hot rod oil, high zinc usually 10w30 1 Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted September 14, 2023 Share Posted September 14, 2023 Rotella 15w40 was using brad penn 20w50. 2 Quote Link to comment Share on other sites More sharing options...
Montemedic Posted September 14, 2023 Share Posted September 14, 2023 Valvoline VR-1, 20W-50 with high zinc. Quote Link to comment Share on other sites More sharing options...
Chevy Dave Posted September 14, 2023 Share Posted September 14, 2023 I always use synthetic in everything, because it promotes lower wear, better fuel ecinomy and better cold and heat protection. I asked a Mobil Oil Company chemist for a recommendation, he recommended Their 5W40 Turbo Diesel MOTOR Oil. This oil meets the requirements for gasoline engines as well as diesels, and is high in ZDDP. Synthetic oils do not cause leaks, but they can make them worse if they exist. 1 Quote Link to comment Share on other sites More sharing options...
cbolt Posted September 14, 2023 Share Posted September 14, 2023 Lucas 10w40 Quote Link to comment Share on other sites More sharing options...
riverdogs00 Posted September 14, 2023 Share Posted September 14, 2023 Amsoil Z-Rod 10/40 Quote Link to comment Share on other sites More sharing options...
MC-71 Posted September 14, 2023 Share Posted September 14, 2023 Valvoline 10w50 is there shelf life on motor oil? Quote Link to comment Share on other sites More sharing options...
Sids Monte Posted September 16, 2023 Share Posted September 16, 2023 Schaeffer's racing oil - extra znc Supreme 7000 synthetic plus 20-50W Engine builders recommendation Quote Link to comment Share on other sites More sharing options...
rsorg Posted September 16, 2023 Share Posted September 16, 2023 lucas hot rod oil high zinc 1 Quote Link to comment Share on other sites More sharing options...
Whons Posted September 18, 2023 Share Posted September 18, 2023 I use Castrol gtx 10w30. Can you switch from conventional oil to synthetic without any trouble? Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted September 18, 2023 Share Posted September 18, 2023 1 minute ago, Whons said: I use Castrol gtx 10w30. Can you switch from conventional oil to synthetic without any trouble? Usually can with no trouble but synthetic oil will find any oil leaks you have much easier then conventional oil. It don't cause Leak but it will find them. Quote Link to comment Share on other sites More sharing options...
stangeba Posted September 18, 2023 Author Share Posted September 18, 2023 I went to an auto parts store and it was difficult to find regular style oil but there were tons of synthetic oil on the shelves. I didn't notice (or look for) the price difference? Quote Link to comment Share on other sites More sharing options...
EVC Posted September 18, 2023 Share Posted September 18, 2023 2 hours ago, stangeba said: I went to an auto parts store and it was difficult to find regular style oil but there were tons of synthetic oil on the shelves. I get the Lucas or Valvoline VR1 from Amazon. I try to keep enough in my garage for two oil changes... The Zinc additive doesn't work as well ,so I always get the oil with Zinc…. I'm sure others will disagree, but that's my opinion. Oils with high detergent defeat the purpose of the additive. Ed C. Quote Link to comment Share on other sites More sharing options...
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