Parts for your 2013 Nissan Pulsar-Fuel cap

2013 Nissan Pulsar fuel cap — what it does and how to look after it

Technical sources confirm the 2013 Nissan Pulsar (C12 hatch and B17 sedan) uses a conventional screw-on, tethered fuel-filler cap. The Nissan Pulsar Owner’s Manual (2013, fuel-filler cap section) specifies tightening the cap until it clicks and recommends using a Genuine Nissan cap. Nissan’s service literature also ties a loose or incorrect cap to EVAP system faults (e.g., small leak checks), and Australian Design Rule 79/03 emissions requirements rely on a sealed fuel system — all of which makes the fuel cap very much a relevant, fitted part on this model.

On a 2013 Pulsar, the fuel cap’s job is simple but critical. It seals the tank to keep petrol vapours in and dust, water, and road grime out. That airtight seal lets the EVAP system do its thing, capturing fumes and reducing emissions, while also helping avoid fuel odour around the rear quarter. It’s a safety piece too, the correct cap has a calibrated seal and valve behaviour designed for the Pulsar’s tank and EVAP hardware, not just any old plug.

Owners will notice the cap is designed to be tightened until it clicks, that audible click means it’s seated properly. If the cap isn’t snug, the car can flag an evaporative leak, which may light the check engine lamp not long after refuelling. Re-seating the cap and driving a few trips often resolves it, provided the seal is healthy.

As part of routine servicing, it pays to give the cap a once-over. Wipe the cap and filler neck threads, check the rubber O-ring for cracks, flattening, or hardening, and make sure the tether isn’t torn. Don’t lubricate the seal — oils and grease can swell the rubber — just clean it and refit. If the cap doesn’t click easily, if there’s a persistent fuel smell, or if the cap or seal looks perished, it’s time to replace it.

Using a Genuine Nissan cap (or a quality equivalent specified for the C12/B17 Pulsar) helps avoid nuisance EVAP faults and ensures the right sealing pressure. Replacement is straightforward: remove the old cap, confirm the new O-ring is in place and undamaged, screw on until it clicks, and stow the tether neatly so it doesn’t snag. During refuelling, avoid overfilling once the pump first stops — that helps keep the charcoal canister happy and the cap area clean. Look after this small part and it’ll quietly keep emissions in check, fuel clean, and the dashboard free of warning lights.

• Signs it needs replacing: cracked/hard O-ring, won’t click tight, repeated EVAP/check engine warnings after refuelling, lingering fuel odour.
• Service tip: inspect the cap at each oil change and replace at the first sign of seal damage.

Popular questions

Does the 2013 Nissan Pulsar have a capless filler?
No. The 2013 Pulsar uses a screw-on, tethered fuel cap. Nissan’s 2013 Owner’s Manual calls out tightening “until it clicks” and recommends using a Genuine Nissan cap, confirming it’s not a capless system.

Why did the check engine light come on after refuelling?
A loose or worn fuel cap is a common cause. Make sure the cap is tightened until it clicks a few times. If the light was triggered by a minor EVAP leak, it may clear after a couple of normal trips. If it stays on, have the EVAP system checked for leaks or a damaged cap seal.

What fuel cap should be used on a 2013 Pulsar?
Use a Genuine Nissan fuel-filler cap or a high-quality equivalent specified for the 2013 Pulsar (C12/B17). The correct cap ensures proper sealing and valve behaviour, preventing EVAP faults. If unsure, supply the vehicle’s VIN to a parts specialist to confirm compatibility.