The Pathfinder takes 5 quarts of 5W-30 with a fresh OEM filter, regardless of which V6 you're running — VG30E (WD21), VG33E (R50), or VQ40DE (R51). Change it every 5,000 miles if you tow or wheel, 7,500 miles for pavement-only commuting.
Nissan's old-school V6s do not punish you for getting the oil change wrong, but they reward you for getting it right. The VQ40DE in particular runs cleaner and quieter on a strict 5,000-mile interval with a real OEM filter — the bypass valve in the OEM filter is calibrated tighter than most aftermarket equivalents. Skip the bargain orange-can filter on a V6 you plan to keep for a decade.
The drain plug lives on the passenger side of the pan on the VQ40DE and the bottom-center of the pan on the VG-series. Both engines use a 14mm hex (some early VG30E plugs are 12mm — check yours before you commit). The OEM crush washer (Nissan p/n 11026-01M02) is a $1 part. Replacing it every time is the cheapest insurance against a slow weep that ruins a fresh oil change two weeks later.
The VQ40DE oil filter is a 64mm, 14-flute cap. The factory used 15208-65F0E or 15208-9E01A across the R51 production run. The VG30E and VG33E use the older 15208-31U01 spin-on. Both filters thread on snug — palm-tight plus a quarter turn. Cinching them down with a wrench guarantees a leak the next time you go to take it off.
Fill capacity is 5 3/8 quarts for the VQ40DE and roughly 4 quarts for the VG-series. Pour in 4, run the engine for 30 seconds, shut it off, wait two minutes, then check the dipstick and top off. Drain-fill capacities listed in the owner's manual are conservative — going slow on the final pour keeps you off the high mark.
| Part | Vendor | Est. price |
|---|---|---|
| Nissan OEM Oil Filter (VQ40DE) | Nissan | ~$8 |
| Nissan OEM Oil Filter (VG30E/VG33E) | Nissan | ~$8 |
| Drain plug crush washer 11026-01M02 | Nissan | ~$1 |
| 5W-30 full synthetic motor oil (5 qts) | Mobil 1, Valvoline, Pennzoil | ~$30 |
Written and maintained by an AZ wheeler and driveway wrencher. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.