Manual transmission oil — capacity and spec

Tags: #manual-transmission · #reliability · #transmission-fluid

For the 2019 facelift manual-transmission X80, reported oil capacity is approximately 2.59-2.95 liters per one reference the owner recalled imprecisely ("по камасутре" — i.e. from a manual/reference document), though multiple owners in practice confirm needing about three 1-liter bottles to fill it completely, suggesting the true figure is closer to ~3L in practice¹². One separate report cites needing almost 4 liters total, which may reflect a different measurement point or a topped-off/overfilled scenario rather than the nominal spec³.

Oil spec. The specified oil viscosity is the somewhat unusual 75W-85 grade — one owner double-checked this because the grade struck them as atypical enough to wonder if it was a typo, but confirmed it as correct⁴⁵. An earlier, independent exchange in the group gives the same 75W-85 figure per the owner's manual, without further detail on capacity⁶⁷.

Separate spec/interval report — GL4, 75W-80. A later, separate report gives a different spec: GL4 gear oil, viscosity 75W-80 (note: this differs from the 75W-85 grade confirmed above — treat as a possible source discrepancy rather than a resolved single spec). The factory change interval cited is 40,000 km, though other mentions elsewhere put it closer to ~60,000 km. This source also notes that the fluid-level check procedure differs between the AKPP (which must be warmed to a specific temperature, e.g. 60°C, before checking) and the manual transmission⁸⁹¹⁰.

75W-80 synthetic — restated (MКПП only, not AKPP). Separately confirmed: the X80 manual transmission (MКПП) requires 75W-80 synthetic gear oil; this spec applies to the manual transmission only and not the automatic (AKPP)¹¹.

Owner-manual model code and brand confirmations (CA6462ATE5TKG1). The owner's manual, under model code CA6462ATE5TKG1, specifies manual-transmission fluid as SAE 75W-80, API grade GL-4, capacity 2.95 L — consistent with the 75W-80 grade already on this card, and pinning down the API grade (GL-4) for the first time. Synthetic brands confirmed by owners: Polymerium 75W-80 (very thin, flows well in cold), ZIC 75W-80, and BARDAHL XTG 75W-80 (recommended for quality/performance across climates)^{121314151617181920212223242526272829}.

75W-80 synthetic — another independent confirmation. A separate, later report again confirms the manual transmission uses 75W-80 synthetic gear oil, consistent with the specs above³⁰³¹³².

Fluid specification — 75W-80, brand and price. The FAW X80 manual transmission requires 75W-80 viscosity fluid. Recommended product: Petrol Ofisi MAXIGEAR EP 75W-80, 1L bottles, available on Ozon; price roughly 2,600 RUB as of October 2025 (RU market). One user reports successful use across two service intervals^33343536.

Fill amount — restated conflict, 2.3-2.5L practical vs. 2.9L per manual. A separate exchange restates the fill-amount discrepancy: manual transmission (MT) practical drain-and-refill amount is commonly 2.3L (measured by filling from the drain plug until fluid reaches the filler hole), though the owner's manual specifies 2.9L. One user reports 2.3-2.5L actual when draining, another confirms 2.9L when the transmission is completely drained. Automatic-transmission (AT) capacity is not discussed in this batch. No specific synthetic-fluid requirement beyond general-purpose transmission fluid was mentioned^{373839404142434445}. Conflict: the discrepancy between ~2.3-2.5L (practical, possibly incomplete drain) and 2.9L (per manual, complete drain) is not resolved — it may depend on how thoroughly the old fluid is drained.

Earlier independent capacity report — 2.9L, no filter. A separate, earlier exchange gives the same 2.9 liter capacity for the manual gearbox, consistent with the owner-manual figure already on this card. Typical drain volume during a routine oil change is closer to 2.4 liters, so buying at least 2.9L is recommended to guarantee a full refill. No transmission filter is used — the manual gearbox oil change is drain-and-refill only^464748495051.

Semi-synthetic 75W-90 GL-4 — an earlier, conflicting brand/viscosity recommendation. An earlier, independent thread recommends 75W-90 semi-synthetic gear oil, API grade GL-4, specifically naming LUKOIL Turbo ТМ-4 and TATNEFT ТМ-4-18 (or an equivalent semi-synthetic 75W-90 GL-4 product) as good options, at roughly 2,000-2,100 RUB (RU market, June 2024) for a 4L bottle of LUKOIL ТМ-4. The thread warns against low-quality bulk/generic oils, which can cause difficult gear engagement once the oil is warm. Conflict: this 75W-90 GL-4 recommendation contradicts the 75W-80 (GL-4) spec confirmed elsewhere on this card via the owner's manual (model code CA6462ATE5TKG1) — not resolved within this data batch; may reflect different manual revisions, regional specs, or simply differing community opinions on an acceptable substitute viscosity^{52535455565758}.

75W-80 factory spec confirmed again, with 75W-90 as an accepted community alternative. A later, separate report restates that the manual's factory spec is 75W-80, while noting that community consensus treats 75W-90 as an acceptable, functionally compatible alternative — reconciling (without fully resolving) the viscosity conflict noted above: both grades are in active community use, with 75W-80 as the documented factory figure and 75W-90 as a widely tolerated substitute⁵⁹.

Official owner's-manual figures — restated, plus clutch fluid and AKPP fluid. Both figures below are sourced from the official owner's manual for model CA6462ATE5TKG1, consistent with the manual-transmission figures already established on this card: 2.95 liters of API GL-4 grade oil, SAE 75W-80 viscosity. The manual's transmission-section page also lists clutch fluid as DOT4. Separately, for comparison, the manual specifies the automatic transmission (AKPP) at 6.5 liters of JWS-3309 grade fluid⁶⁰⁶¹.

Long-term reliability — 327,000 km on manual transmission. One owner with a manual-transmission FAW X80 reports 327,000 km on the odometer with only regular oil changes performed (per the spec documented above) — no major engine or transmission work has been required. The owner describes both the engine and transmission as remaining solid despite the high mileage, and is satisfied overall with the car's reliability⁶².

Media

Owner manual excerpt: Manual transmission (Ручная коробка передач) — 2.95L volume, SAE 75W-80 viscosity, API GL-4 quality

Photo of BARDAHL XTG 75w80 100% Synthetic transmission oil bottle

Manual specification page showing manual-transmission oil volume (2.95L, API GL-4, SAE 75W-80) and automatic-transmission fluid (6.5L, JWS-3309)

Related pages

• Automatic transmission (AKPP) — ATF fluid & intervals
• Manual transmission — 2nd-gear grinding
• Clutch pedal adjustment (manual transmission)
• ATF and power-steering fluid — Dexron III vs JWS3309
• Manual transmission — shift points and RPM

Sources

This page is compiled from 62 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-10-29