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Old 01-22-2020, 11:53 AM   #1
gfbdiesel
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Default synthetic oils

what do y'all think about synthetic oil in the engine, transmission, and the rear end. does it help to make the car more consistent?
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Old 01-22-2020, 03:42 PM   #2
340Cuda
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Default Re: synthetic oils

I don't know enough to tell you anything about the transmission and engine oils but I strongly feel that going to synthetic lube in my Dana 60 has eliminated the first run of the day being slower, even if the car had been warmed up on jack stands.

This makes me think it would be more consistent for the rest of the day as well.
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Old 01-22-2020, 06:18 PM   #3
gfbdiesel
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Default Re: synthetic oils

What weight gear oil is everyone using?
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Old 01-23-2020, 09:42 AM   #4
340Cuda
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Default Re: synthetic oils

Quote:
Originally Posted by gfbdiesel View Post
What weight gear oil is everyone using?
75-90W for me.
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Old 01-23-2020, 12:04 PM   #5
Jeff Stout
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Default Re: synthetic oils

Quote:
Originally Posted by 340Cuda View Post
I don't know enough to tell you anything about the transmission and engine oils but I strongly feel that going to synthetic lube in my Dana 60 has eliminated the first run of the day being slower, even if the car had been warmed up on jack stands.

This makes me think it would be more consistent for the rest of the day as well.
This. I had the same result with first run in the morning and not getting regular oil warmed up enough. Now first run is consistent with other runs.
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Old 02-22-2020, 11:25 AM   #6
Charlie Yannetti
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Default Re: synthetic oils

Get with your local Lucas dealer.. I use synthetic motor oil and gear oil, and my trans guy recommends the semi-synthetic in the trans.. and there is usually a Lucas dealer at ALL races...
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