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post #1 of 4 (permalink) Old 01-01-2018, 08:13 AM Thread Starter
 
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Motor Oil

I recently purchased a 1970 GTO w/455 engine w/400auto trans
all #'s matching.Motor was rebuilt recently.
what type of motor oil do you recommend?
I also own a 69 427 Camaro and use 20/50w with the zinc,etc.
do I need that in the 455?
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post #2 of 4 (permalink) Old 01-01-2018, 08:26 AM
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Originally Posted by SteveK69 View Post
I recently purchased a 1970 GTO w/455 engine w/400auto trans
all #'s matching.Motor was rebuilt recently.
what type of motor oil do you recommend?
I also own a 69 427 Camaro and use 20/50w with the zinc,etc.
do I need that in the 455?
You're going to get various opinions on oils from Brad Penn to Shell Rotella. I use Valvoline VR1 racing oil 10w40 with high zinc NON-synthetic. (400) My engine is all original if your rebuild accepts synthetic then you have a choice. I get mine off of Amazon (best price I can find) and have it delivered. I know those with 455's and they use 30 or 40W with no issues.



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post #3 of 4 (permalink) Old 01-01-2018, 08:35 AM Thread Starter
 
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Thanks for the info.Here's the GTO.
Living in Wisconsin it's only going to be on the road in the warm weather.
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post #4 of 4 (permalink) Old 01-21-2018, 05:48 PM
 
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I have a 69 GTO with a 71 455 in it and I also run the VR1 oil but I use 20/50w with no problems.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion

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