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Technical Specification
PRODUCT NUMBER 75032E325E328E

Q 1. What is the BG Syncro Shift II 18.92 litre pack (7925) for?

A. An 18.92 litre workshop bulk pack of BG Syncro Shift II — for fleet or workshop service of manual transmissions, transaxles, transfer cases and Haldex units requiring API GL-4 SAE 75W-75 gear oil.

Q 2. What is BG Syncro Shift II Full Synthetic Gear Lubricant?

A. A full-synthetic API GL-4 gear lubricant blended to SAE 75W-75 for manual transmissions, transaxles, transfer cases and Haldex units. Unmatched film strength and wear protection, excellent low-temperature fluidity, safe for steel/brass/copper alloys.

Q 3. What OEM specifications does BG Syncro Shift II meet?

A. Compatible and suitable where Ford XT-11-QDC (WSS-M2C200-D2), GM Auto Trak I and II, GM Synchromesh, Motorcraft XL-12, Acura DPSF, Honda Dual Pump, Honda VTM-4, and Mercedes-Benz PN 900260315 are specified.

Q 4. Why use GL-4 instead of GL-5 in manual transmissions?

A. GL-5 gear oils contain higher levels of EP additives 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 where the application calls for it.

Q 5. Can BG Syncro Shift II be used where engine oil or ATF is specified for manual transmissions?

A. Yes. BG states Syncro Shift II may be effectively used in all vehicles where engine oil, ATF, or GL-4 gear oil is specified as service fill for manual transmissions — confirm against the vehicle handbook.

Q 6. Is BG Syncro Shift II suitable for Haldex AWD systems?

A. Yes. BG specifically lists Haldex units as a target application. For Haldex coupling oil service, confirm the specific fluid grade against the OEM's specification before deploying.

Q 7. Will BG Syncro Shift II quiet a noisy manual gearbox?

A. For noise caused by aged or out-of-spec gear oil, yes — fresh GL-4 with full film strength typically reduces gear noise. Mechanical noise (worn bearings, damaged gear teeth, low oil level) requires diagnosis rather than additive treatment.

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