Acura TLX (USA / CAN)

Additional Notes

• The rear differential fluid capacity for the Acura TLX 3.5 AWD spans 1.82 to 1.86 liters across all listed configurations, whether for the USA or CAN market. A capacity range rather than a fixed value typically reflects minor variation between service fill and full overhaul fill levels.
• Under severe use conditions, the Canadian-market TLX 3.5 AWD (2014-2020) carries a rear differential fluid change interval of 24,000 km, while the USA-market equivalent is set at 15,000 miles. Both figures apply to the same severe-use classification, with the difference reflecting each market's unit of measurement rather than a difference in service philosophy.
• A first-change-only interval is specified separately from the standard severe-use interval in both markets. For the Canadian market, the first differential fluid change under severe use falls at 12,000 km, exactly half the ongoing severe interval of 24,000 km. For the USA market, the first change under severe use is set at 7,500 miles, again half the ongoing severe interval of 15,000 miles.
• The halved first-change interval under severe use reflects a common break-in practice for gear-driven components. Metal particles generated during initial wear of differential gears and bearings are removed earlier to prevent contamination from accumulating through subsequent service cycles.
• A third service condition is listed for both the USA and Canadian markets: flexible service governed by an on-board maintenance system. Under flexible service, no fixed change interval is specified in the data, and only the 1.82-1.86 liter capacity figure is associated with the entry.
• The rear differential fluid specifications apply exclusively to the 3.5 AWD variant. AWD-equipped models incorporate a rear differential unit that front-wheel-drive variants do not, which is why a rear differential fluid entry exists only for the 3.5 AWD configuration within the 2014-2020 TLX lineup.