10W-40 Engine Oil

8 10W-40 oils from Castrol, Mobil, NAPA and Valvoline, matched to the carmaker approval your handbook lists. Order by 1pm for next-day delivery, or collect NAPA from our Bulwell shop.

Match a 10W-40 to your carCall 0115 927 3651

10W-40 explained

What 10W-40 oil is, and which one your car needs

A semi-synthetic grade for older petrol and diesel engines, often listed for cars from the 1990s and 2000s. You’ll also see it written 10W40.

Most 10W-40 oils are high-ash (A3/B4 or A3/B3), so they are not for diesels with a particulate filter: use what your handbook lists.

In our car table, 3% of the engine types list 10W-40. Below, each approval we sell in 10W-40: what it is for, the cars that list it, and the oils that state it.

Shop 10W-40 by approval

10W-40 oil for ACEA A3/B3

ACEA A3/B3: a class for older petrol and diesel engines without a particulate filter.

Cars in our table that list it with 10W-40: Nissan Juke (F15); Honda Jazz (Mk1 (GD)); Vauxhall Vivaro (A); Honda Civic (7th gen (EP/EU), 8th gen (FK/FN)); Suzuki Swift (2017-24 (AZ)); Honda CR-V (Mk2 (RD), Mk3 (RE)); Land Rover Freelander (Freelander 1 (L314) facelift).

10W-40 oil for ACEA A3/B4

ACEA A3/B4: a high-performance class for petrol and diesel engines without a particulate filter.

Cars in our table that list it with 10W-40: Nissan Juke (F15); Nissan Qashqai (J10); Nissan Micra (K12, K13); Suzuki Swift (2017-24 (AZ)); Mazda 2 (DE); Nissan Note (E11); Nissan X-Trail (T31); Land Rover Freelander (Freelander 1 (L314) facelift).

10W-40 oil for VW 505.00

Older Volkswagen Group oils for fixed (yearly) servicing: 502.00 for petrol, 505.00 for diesel and 505.01 for the Pumpe-Duse diesels.

Cars in our table that list it with 10W-40: VW Golf (Mk4); Audi A3 (8L); Skoda Fabia (Mk1); Skoda Octavia (Mk1).

10W-40 oil for MB 229.3

Mercedes-Benz sheets for earlier petrol and diesel engines without a particulate filter.

Cars in our table that list it with 10W-40: Mercedes A-Class (W168).

10W-40 oil for MB 229.1

Cars in our table that list it with 10W-40: Mercedes A-Class (W168).

Questions

10W-40 engine oil questions

What does 10W-40 mean?

The 10W is the cold rating: the lower the number, the more easily the oil flows at a cold start, so a 10W flows less freely than a 5W or 0W oil. The 40 is how thick it stays at running temperature, the same as a 5W-40.

Is 10W-40 semi-synthetic?

Usually, yes. 10W-40 is mostly made as a semi-synthetic oil for older engines; each oil’s product page says which it is.

Can I use 10W-40 instead of 5W-30?

Only if your handbook lists 10W-40 for your engine. Most cars built since the mid-2000s list a 30 grade such as 5W-30 or 0W-30, often with a low-ash carmaker approval that 10W-40 oils do not carry.

Is 10W-40 good for a high-mileage engine?

Where the handbook lists it, many owners of older, high-mileage engines choose 10W-40 because it stays thicker when hot. Do not go thicker than the handbook allows: a thicker oil reaches the moving parts more slowly from cold.

Can I use 10W-40 in a diesel with a particulate filter?

No, unless your handbook lists it with a low-ash approval, which is rare. Most 10W-40s are high-ash (A3/B4 or A3/B3).

Do you deliver 10W-40 engine oil?

Yes: order by 1pm Monday to Friday for next-day delivery. NAPA oils can also be collected free from our shop at 2-4 Carey Road, Bulwell, Nottingham NG6 8AT.

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