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Warrior102 · 12-04-2025, 05:56 PM

Not to swim against the tide but I've been running Royal Purple Synchromesh for over 45K and no issue, they're painting with a wide brush on the 'no synthetic' recommendation. Tremec even recommends Mobil1 synthetic ATF.

12-04-2025, 05:56 PM	#10
Warrior102 USCG Retired (MKC) Drives: 2018 2SS 1LE Black Join Date: Aug 2018 Location: Cape Cod Posts: 679	Not to swim against the tide but I've been running Royal Purple Synchromesh for over 45K and no issue, they're painting with a wide brush on the 'no synthetic' recommendation. Tremec even recommends Mobil1 synthetic ATF.