Reform Metrac
Differential fluid capacity & service interval
Reform Metrac differential fluid capacity ranges from 1,4 to 1,7 liters. Service intervals include checks at 100 and 200 hours, and changes at 35 and 600 hours or 24 months. The data covers 24 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Reform Metrac 2003 and 3003 series (1989-2000) share identical front and rear differential capacities of 1.4 liters each, while the Metrac 4004 and 4004 H (1992-2000) carry a slightly larger 1.7-liter capacity per differential, reflecting the higher-displacement platform of the 4004 line.
- Across all 1989-2000 variants, the differential check interval is set at 200 hours under normal use conditions, with a full fluid change required at 600 hours or 24 months, whichever comes first. The dual threshold of hours and calendar time accounts for machines that accumulate low annual operating hours.
- The H-series models introduced from 2011 onward carry a tightened check interval of 100 hours for both front and rear differentials under normal use, compared to the 200-hour check interval specified for the earlier 1989-2000 models. The change interval of 600 hours or 24 months remains consistent across both generations.
- The Metrac H6 X and H7 X (2011-2013) both specify a first-change-only interval of 35 hours for front and rear differentials. A break-in fluid change at low hours is standard practice for new gear sets, as initial operation generates fine metallic particles that are removed before the normal service schedule begins.
- The 35-hour first-change-only interval carries forward unchanged to the Metrac H7 X 39D/1 and H8 X 34D/7 (2016-2022), applying equally to both front and rear differentials on each variant.
- All H-series models from 2011-2022 share a uniform 1.7-liter capacity for both front and rear differentials, regardless of variant designation or model year within that range.
- The Metrac 4004 and 4004 H (1992-2000) share the same 1.7-liter differential capacity as the later H-series machines, even though the H-series models carry additional first-change service requirements that the 4004 specifications do not include.
- The 24-month calendar-based change interval applies consistently across all model variants in the specifications, pairing with the hour-based threshold so that time-limited operation does not extend fluid service life indefinitely beyond two years.