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#2 |
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Rather than mixing in a ZDDP additive, I prefer to use an oil that has it built in. I have been running Brad Penn/Penngrade 1 10/30 and 5/30 oils in my flat tappet and hydraulic roller stuff for quite a few years now, and have had no cam or lifter issues. Over the years, it appears that the Shell Rotella oil has had the ZDP content reduced more than once.
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NHRA 6390 STK M/S 85 Mustang |
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#3 |
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Continue to do what has worked in the real world for you and your engine builder.
For a stock or super stock application hopped up for class, Maxima PS0 oil straight worked great with 35 lbs. oil pressure at the stripe, the narrowed rod bearings looked new after 30 runs. Last edited by Rick J; 05-21-2024 at 06:31 AM. |
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#5 |
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They don't carry Rotella. All good though, I took an earlier suggestion and bought 10 gallons of straight 30wt at 17.50/gal from Walmart.
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Dawson Pauley #2827 N/SA 1980 Malibu SW 2S 305/180 #2827 S/ST 1978 Mazda RX7 w/ 383 sbc/glide |
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#6 |
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![]() ![]() By the way Wal Mart brand Super Tech 5W-30 has always equated to Mobil One, so I've used it. Never an issue. Someone made a comment a week or so ago about a newer light weight oil that makes 3 horsepower on a 400 HP motor. What gives? |
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#7 |
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Without knowing base and additive packages in these specialty oils especially after covid … I would be hesitant about adding anything.
I do not pretend to be a chemical engineer. |
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#8 | |
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![]() Quote:
C'mon man...
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#9 |
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Dawson Pauley #2827 N/SA 1980 Malibu SW 2S 305/180 #2827 S/ST 1978 Mazda RX7 w/ 383 sbc/glide |
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