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A. BG Syncro Shift II is a synthetic API GL-4 SAE 75W-75 gear lubricant for manual transmissions, transaxles, transfer cases and Haldex units. Enhanced over original BG Syncro Shift with expanded OEM coverage.
A. Syncro Shift II (PN 792) has enhanced film strength and broader OEM coverage including Ford XT-11-QDC, GM Auto Trak I/II, Synchromesh, Honda DPSF, VTM-4 and MB 900260315. Syncro Shift (PN 790) is the original.
A. Compatible where Ford XT-11-QDC (WSS-M2C200-D2), GM Auto Trak I/II, GM Synchromesh, Motorcraft XL-12, Acura DPSF, Honda Dual Pump, Honda VTM-4 and Mercedes-Benz PN 900260315 are specified.
A. GL-5 gear oils have higher EP additive levels that can attack brass synchros in manual transmissions. GL-4 (BG Syncro Shift II) is the manual-transmission spec. Use GL-5 (BG Ultra-Guard) only for hypoid diffs.
A. Yes. BG Syncro Shift II specifically lists Haldex units as a target application. For Haldex coupling oil service, confirm specific fluid grade against OEM specification before deploying.
A. For noise caused by aged or out-of-spec gear oil, fresh GL-4 with full film strength typically reduces gear noise. Mechanical noise (worn bearings, damaged gear teeth, low oil level) requires diagnosis.
A. Next-day delivery is available on most products and will appear as an option at checkout where eligible.
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