Nissan VQ37VHR Oil Capacity: What to Know Before an Oil Change
The short answer
There is no single oil capacity that covers every VQ37VHR, and this guide does not give a specific figure. The VQ37VHR is Nissan's 3.7-litre V6 with VVEL (Variable Valve Event and Lift, Nissan's system for varying intake valve lift and timing). It was fitted to more than one Nissan and Infiniti model, and the published refill quantity is set by each vehicle's oil pan, filter and plumbing as well as by the engine. No verified capacity data was supplied for this article, so no exact quart or litre figure is stated here. The reliable source is the capacities table in the owner's manual or service documentation for your specific model, model year and market.
Why the figure depends on the vehicle
The engine code tells you the basic design, but the oil quantity is a whole-vehicle specification. Factors that can change the number include:
Vehicle model and body style, since different chassis can use different oil pan designs; Drivetrain layout, such as rear-wheel drive versus all-wheel drive versions of the same model; Model year, where running changes may alter the published figure; Market, as regional manuals can list different values or units; Whether the figure includes an oil filter change
The last point causes the most confusion. Manuals usually give one quantity for a drain-and-refill with a new filter and a slightly smaller one without a filter change. Comparing a with-filter figure from one source against a without-filter figure from another can make two correct numbers look contradictory.
How to find and confirm the correct quantity
Identify the exact vehicle: model, model year, drivetrain and market. Open the maintenance or technical specifications section of the owner's manual and find the capacities table. Use the figure labelled for a drain and refill with an oil filter change if you are replacing the filter. Note the oil viscosity and specification listed alongside the capacity, as these can also vary by market and climate. If the manual is missing, ask a dealer service department for the specification using your vehicle identification number.
Filling safely when you are unsure
Even with the correct published figure, the dipstick is the final check. Some old oil usually stays in the engine after draining, so the full listed amount may not be needed. A cautious approach is to add somewhat less than the listed quantity, run the engine briefly, switch it off, wait for the oil to drain back into the pan, then check the dipstick with the car on level ground. Top up in small amounts until the level sits within the marked range. Overfilling is worth avoiding because excess oil can be churned by the rotating crankshaft and may cause aeration and leaks.
Information gaps in this guide
No verified capacity figures, viscosity recommendations or model-by-model specifications were available for this article. It therefore does not state a number for any VQ37VHR application. Treat oil quantities you find elsewhere as reliable only when they name the vehicle, model year and market, and state whether a filter change is included.