Motul Specific C40 5W-40 (5 Liter)
MOTUL Specific C40 5W-40 5L

Motul Specific C40 5W-40 (5 Liter)

$106.00
Part no. 113943Free US shipping on orders $125+ — $9.99 otherwise.Questions about fitment? [email protected](opens in new tab)
About this part

What you need to know

Motul Specific C40 is the Porsche C40 fill for the 9A4 4.0 in the 718 GT4 and 718 GTS 4.0, and for the 2.0/2.5 turbo 718 Cayman (Base, T, S, GTS 2.5). Mid-SAPS 5W-40, official Porsche C40 approval, written for engines with gasoline particulate filters — not a substitute for A40 oils like 8100 X-max / X-cess, and not C40 GT.
Five-liter jug. Also sold as a 1 liter bottle. Porsche C40 is not backward-compatible with A40, C30, or C20. If the car calls for C40 GT (718 GT4 RS, 992 GT3 / GT3 RS), use the genuine Porsche 0W-40 instead.
Tech data

Specs

Applications

Which cars this fits

All versionsPart no. 113943
  • Porsche 718 Cayman 982 GT42019– · Porsche C40 only — not A40, not C40 GT
  • Porsche 718 Cayman 982 GTS 4.02020– · Porsche C40 only — not A40, not C40 GT
  • Porsche 718 Cayman 982 Base2017– · Porsche C40 approved oil
  • Porsche 718 Cayman 982 T2020– · Porsche C40 approved oil
  • Porsche 718 Cayman 982 S2017– · Porsche C40 approved oil
  • Porsche 718 Cayman 982 GTS 2.52018–2019 · Porsche C40 approved oil
Not sure it fits? Email us(opens in new tab) with your year and model.

Read this

From the shop: notes that mention this part.
Why we switched our 718 Cayman S from Mobil 1 to Motul
Oct 1, 2026

Why we switched our 718 Cayman S from Mobil 1 to Motul

9 oil analyses, 47k–104k miles on a tracked 718 Cayman S. Mobil 1 0W-40 drained thin and oxidized; Motul 8100 X-clean Gen2 5W-40 held up. Here's the lab data.