John Deere 8370R engine oil capacity
Engine oil capacity for the 8370R
The John Deere 8370R, an 8R Series row-crop tractor built around the PowerTech PSS 9.0 L six-cylinder diesel, is commonly specified with an engine crankcase oil capacity of 32.2 litres (8.5 U.S. gallons) when the oil filter is changed with the oil. That figure is the fill volume published for the engine lubrication system on this model, not a service interval or a grade recommendation.
What the capacity covers
The 32.2 L / 8.5 gal number is an engine-only specification. It applies to the crankcase and the replacement oil filter on the 9.0 L PowerTech PSS used in the 8370R. It does not include transmission, hydraulic, axle, or final-drive oil, which are separate systems with their own capacities and fluids. A refill that omits a new filter will take slightly less oil than a full filter-and-oil service.
Item Specification; Tractor John Deere 8370R (8R Series); Engine PowerTech PSS 9.0 L, inline-six diesel; Engine oil capacity (with filter) 32.2 L (8.5 U.S. gal); System covered Engine crankcase and oil filter only
Confirming the figure on your machine
Treat the published capacity as a starting fill, then set the level with the dipstick after a short run and a few minutes of drain-back, with the tractor parked level. Overfilling can raise crankcase pressure and oil consumption; underfilling leaves bearings and the turbocharger short of oil. If the tractor has been converted, fitted with a different filter, or is a later 8R 370 successor rather than an 8370R, use the operator’s manual and the dipstick for that serial number. Oil grade (typically a John Deere Plus-50 II or equivalent 10W-30 / 15W-40 diesel oil, chosen for ambient temperature) is independent of capacity and should follow the viscosity chart in the same manual.
