International ProStar · fluids
Fluids & Fill AmountsHow much oil, coolant, DEF and gear oil this truck takes, and what specification to buy.
Set the year first
Then read the How much column as a refill quantity, not a dry fill. Fill to the dipstick or sight glass and treat the number as a starting point — a drain never gets everything out.
Fill amounts for International ProStar
| Fluid | How much | What to buy | Years | Source |
|---|---|---|---|---|
| Engine oil - MaxxForce 13 (pan + filter)Change it: 25,000-50,000 mi by mpg band | 42 qt (40 L) | API CK-4, 15W-40 (10W-30 cold) | 2007–2017 | Verified |
| Engine oil - Cummins ISX (pan + filter)Change it: 25,000-50,000 mi by duty | 43.5 qt (41.1 L) steel pan | API CI-4+/CK-4, CES 20086, 15W-40 | 2007–2017 | Verified |
| Engine coolant - ELCChange it: Replace 600,000 mi / 6 yr; add extender at 300,000 mi | Not verified - consult OEM service manual | OAT extended-life meeting ASTM D6210 | 2007–2017 | Verified |
| DEF tankChange it: Fill at every fuel stop | 10-20 gal depending on option | ISO 22241 DEF | 2010–2017 | Verified |
| Fuel tankChange it: - | 75-180 gal depending on option | ULSD, 15 ppm max | 2007–2017 | Verified |
Sources: Cummins ISX Quick Reference Guide 5410641; International A26 service data; International A26/MaxxForce service data; International ProStar specification
Two ways to wreck an engine in five minutes
Overfilling an oil pan aerates the oil and can damage bearings. Running a cooling system low can crack a liner or a head before the gauge even moves. Fill slowly, then check the dipstick or sight glass twice.