Parts for your 2013 Holden Captiva 5-Oil cap

2013 Holden Captiva 5 oil cap: what it does and how to look after it

Yes, the 2013 Holden Captiva 5 uses an oil filler cap. Technical sources that identify it include the Holden Captiva CG Series II Owner’s Manual (2013) under Engine Compartment Overview, which labels the “Engine Oil Filler Cap” on the cam cover, GM Service Information for the 2.4‑litre petrol (A24XE/LEA family) describing the cap’s sealing role in crankcase ventilation, and the 2013 Chevrolet Captiva Sport Owner’s Manual (the Captiva 5’s sibling) showing the same marked cap with the oil can symbol.

On the Captiva 5, the oil cap is the simple but crucial lid that lets oil be added and keeps the engine sealed while it’s running. It lives on top of the engine under the bonnet, usually front and centre on the rocker cover, and it’s marked with the little oil can icon. Beyond just being a lid, the cap’s rubber seal helps maintain proper crankcase pressure so the PCV system can do its job, reducing fumes and preventing oil mist from escaping.

Servicing-wise, it’s worth a quick check every time the oil’s changed. Make sure the O‑ring isn’t flattened, hard, or cracked. If there’s oil weeping around the cap, a fuel‑like odour after a drive, or light misting on the cover, the seal may be past it. A missing or loose cap can fling oil out, contaminate the oil with dust, and upset idle quality by letting unmetered air into the crankcase—so don’t drive without one.

Replacement is easy and inexpensive, but grab the right cap for the engine variant. For most 2013 Captiva 5s in Australia and New Zealand, that’s the 2.4‑litre petrol, some markets saw a diesel as well—both engines use a dedicated cap and seal. Go genuine Holden/GM or a reputable aftermarket equivalent that matches the OE spec and includes a fresh O‑ring. Fit the new cap by hand only: turn until it seats and locks, no tools needed. After refitting, start the engine and check there’s no seepage or hiss around the cap.

• Inspect the cap and O‑ring at each service (or every 10,000–15,000 km).
• Clean any grit from the seating area before refitting the cap.
• Replace the cap if the seal is hard, the cap is cracked, or it won’t lock positively.

Look after the oil cap, and it’ll help keep the Captiva 5’s engine clean, sealed, and breathing properly between oil changes.

Popular questions about 2013 Holden Captiva 5 oil caps

Where is the oil cap on a 2013 Holden Captiva 5?
It’s on top of the engine under the bonnet, mounted on the rocker/cam cover and marked with the oil can symbol. Turn anti‑clockwise to remove and clockwise to refit until it locks.

On some trims there’s a plastic engine cover—lift or unclip it and the cap sits just beneath, easy to spot once the cover is off.

Can driving without the oil cap damage the engine?
Yes. Without the cap, oil can splash out quickly, dropping the level and risking lubrication problems. Dust and moisture can also get in, contaminating the oil. You may notice oil smell, smoke, or a mess around the engine bay.

If the cap’s missing, switch off, clean any spilled oil, and fit the correct replacement before driving.

How do I know if my oil cap needs replacing?
Signs include a cracked cap, a flattened or brittle O‑ring, oil mist around the cap area, or a cap that won’t lock securely. If in doubt, replace it—caps are inexpensive and a fresh seal helps the PCV system work as intended.

When replacing, match the cap to your engine (petrol or diesel) and choose a quality part with a new O‑ring.