Parts for your 2016 Nissan Pulsar-Oil cap

2016 Nissan Pulsar oil cap — purpose, care, and replacement

Yes, the 2016 Nissan Pulsar is fitted with a standard engine oil filler cap. This is confirmed by Nissan’s owner’s handbook for the Pulsar (C13) and corresponding engine bay diagrams for its HR/MR-series petrol engines, which show a labelled oil cap on the cam/rocker cover.

On the 2016 Pulsar, the oil cap does a simple but vital job: it seals the engine’s oil filler neck to keep oil in and contaminants out. That seal helps maintain a closed crankcase so the Pulsar’s PCV system can do its thing, keeps dust and moisture from sneaking under the bonnet, and stops oil mist from making a mess of coils, belts, and sensors. It also prevents drips onto the exhaust where they can create smells or, in the worst case, a fire risk.

Owners often only touch the cap during oil changes, but it deserves a quick look every service. The cap’s O-ring or gasket can harden or flatten with age and heat, and the plastic body can crack if it’s been over-tightened. A tired seal can lead to light oil weep, an oily film on the cover, or a faint oil smell after a drive. On MAF-equipped Pulsars, a loose or missing cap can introduce unmetered air and contribute to a rough idle or a warning light.

Replacement is straightforward and tool-free. With the engine cool, twist the cap anti-clockwise, wipe the filler neck, and inspect the threads. If the cap doesn’t seat snugly, the gasket looks perished, or the cap is cracked or warped, fit a new cap. Choose a genuine Nissan cap or a quality equivalent that matches the thread and seal profile for the Pulsar’s engine. Hand-tight is all that’s needed—nip it up until it’s firm