Parts for your 2020 Toyota Rav4-Oil cap

2020 Toyota RAV4 Oil Filler Cap

Yes, the 2020 Toyota RAV4 uses an oil filler cap. Technical sources confirm this: the Toyota Owner’s Manual for the 2020 RAV4 labels and shows the “Engine oil filler cap” in the engine-bay diagram, Toyota’s Repair Manual procedures for A25A-FKS/FXS engines include removing and refitting the oil filler cap during oil changes, and Toyota parts catalogues list a dedicated “Cap, Oil Filler” for these engines. Many genuine caps are also marked with the specified oil grade (typically SAE 0W-16), aligning with Toyota’s recommended engine oil.

On a 2020 RAV4—petrol or hybrid—the oil filler cap sits on the cam/rocker cover under the bonnet. Its job is straightforward but critical: it seals the engine’s oil filler neck, keeping clean oil in and dirt, dust, and moisture out. A good seal helps the crankcase ventilation system behave as it should, prevents oil mist from escaping, and reduces the chance of oil splatter around the engine bay. If it’s loose, missing, or the rubber seal has gone hard, the RAV4 can end up smelling oily, showing residue on the cover, or even idling a bit off due to unwanted airflow into the crankcase.

As part of routine servicing (every 15,000 kilometres or 12 months in Australia and New Zealand, whichever comes first), the oil cap deserves a quick check. It’s a simple, tool-free item, and a few moments of attention pays off in reliability:

• Wipe the area around the filler before removing the cap to avoid knocking grit into the engine.
• Inspect the cap body for cracks and the rubber seal/O-ring for flattening, hardening, or splits. Replace the cap if any damage is found.
• If the seal is dry, a light film of fresh engine oil helps it seat smoothly.
• Refit the cap hand-tight until it’s firmly seated—don’t overdo it. A loose cap can mist oil, too tight can damage the seal.
• After a drive, glance for any fresh oil around the filler area, if present, re-check the cap and seal.

Choosing a genuine or high-quality cap keeps the breather system working as designed on the A25A engine family. If the cap ever goes missing, avoid running the engine, cover the opening cleanly, and source a correct replacement promptly to prevent contamination and oil loss. It’s a small part that quietly protects a very expensive one.

Popular questions about 2020 Toyota RAV4 oil caps

Where is the oil cap on a 2020 RAV4?
The oil filler cap is on top of the engine’s cam cover, visible once the bonnet is raised. On many models there’s an engine cover—just lift it off to reveal the cap. Look for the cap marked with the oil grade (often SAE 0W-16).

What oil grade is shown on the cap for the 2020 RAV4?
Most 2020 RAV4 petrol and hybrid models show SAE 0W-16 on the cap, matching Toyota’s recommendation for the A25A engine range. Always confirm with the owner’s manual or the service label under the bonnet if unsure.

Is it safe to drive with a loose or missing oil cap?
No. A loose or missing cap can let contaminants in and let oil mist out, risking a messy engine bay and potential engine harm. Secure the cap properly before driving, if it’s missing, do not run the engine until a correct replacement is fitted.