Parts for your 2013 Toyota Crown-Oil cap

2013 Toyota Crown oil filler cap — purpose, care, and when to replace

Technical sources confirm the 2013 Toyota Crown does use an oil filler cap. The Toyota Crown S210 owner’s manual (2012–2015) lists engine-oil top‑up via the oil filler opening under the bonnet, requiring a screw-in cap. Toyota’s Electronic Parts Catalogue (EPC) for the S210 series also shows a “Cap Sub‑Assy, Oil Filler” for the 2AR‑FSE hybrid four‑cylinder and the 4GR‑FSE/2GR‑FSE V6 petrol engines. Toyota GR and AR engine repair manuals depict the cap on the rocker cover and note inspection of the cap seal during routine servicing.

The oil filler cap on a 2013 Toyota Crown seals the top of the engine where engine oil is added. Its job is deceptively important: it keeps dust and moisture out, prevents oil from splashing out, and helps the crankcase ventilation system maintain the right pressure balance for clean running and emissions. Whether it’s a petrol V6 or the hybrid four‑cylinder, the engine still relies on a properly sealing cap and rubber gasket.

During servicing, it’s smart to give the cap a quick once‑over. Check that it tightens smoothly by hand and that the rubber seal isn’t cracked, flattened, or hard. A tired cap can leave a light mist of oil around the filler neck, a faint oil smell after a drive, or sticky dust build‑up on the rocker cover. In some cases a poor seal can upset crankcase ventilation and contribute to a rough idle.

Replacement is straightforward: with the engine cool, unscrew the cap, wipe the filler neck clean, and fit a genuine or quality aftermarket cap that matches the Crown’s engine. Avoid over‑tightening