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Quote:
Originally Posted by Slammed72blazers
what type of oil should i use for my Th350 automatic transmission 4x4? Does Dex/merc work or just Dexron atf, any opinions, thanks
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Run Dexron III.
Cheap Aftermarket Dexron III "type" fluids are labeled DEX/MERC, And are NOT approved by any OEM. These fluids do work, BUT they are not tested to any standard, No viscosity or oxidation stability test. You have to trust a "bargain basement" fluid maker for their word.
Stay away from Dexron VI ATF, It has caused seal damage/hardening in some transmissions that were made before 2006, GM says its backward compatible, But they are not fixing any seal damage.
The ONLY Dexron III fluids to have a OEM licence are TES 295Fluids approved by Allison.
TES 295 Approved Automatic Transmission Fluids.
Castrol/Allison........................TranSynd
BP Lubricants.........................Autran Syn 295
Cognis Corporation..................Emgard 2805
International..........................Fleetrite Synthetic ATF
ExxonMobil.............................Mobil Delvac Synthetic ATF
John Deere & Company.............HD SynTran
Volvo Trucks North America.......Bulldog Synthetic ATF