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API Oil

Find the right API oil for your vehicle at Opie Oils. The American Petroleum Institute (API) has been at the forefront of development for petroleum and petrochemical equipment and operating standards for over 75 years. If you are looking for an engine oil or gear oil and know the API grade you want, start here

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402 Products (Viewing: 1 - 60 of 402)

Valvoline VR1 Racing 20w-50 Engine Oil
Was £40.99
£29.99
Price Beater
PETRONAS Syntium 5000 DM 5W-30 Fully Synthetic Car Engine Oil
Was £31.99
£24.95
Price Beater
Millers Oils EE Performance C3 5w-30 Fully Synthetic Engine Oil
RRP £62.95
£53.95
Price Beater
Mobil 1 ESP 5w-30 Advanced Fully Synthetic Engine Oil
Opie Price
£54.95
Price Beater
Millers Oils Trident Professional C3 5w-30 Fully Synthetic Engine Oil
RRP £31.95
£28.99
Price Beater
Millers Oils Motorsport CFS 5w-40 Nanodrive Fully Synthetic Engine Oil
RRP £63.95
£50.95
Price Beater
Fuchs Titan Race Pro S 5W-40 Ester Fully Synthetic Engine Oil
RRP £62.16
£56.95
Price Beater
Fuchs TITAN SYN MC 10w-40 High Performance Semi-Synthetic Engine Oil
Opie Price
£22.99
Price Beater
Mobil 1 FS 0W-40 Advanced Fully Synthetic Engine Oil
RRP £59.99
£55.99
Price Beater
Millers Oils XF Premium C3 V 5w-30 Fully Synthetic Engine Oil
RRP £45.95
£39.95
Price Beater
Millers Oils Motorsport CFS 10w-50 NT+ Nanodrive Fully Synthetic Engine Oil
RRP £91.94
£67.99
Price Beater
Millers Oils EE Performance C3 5w-40 Fully Synthetic Engine Oil
RRP £58.96
£48.95
Price Beater
Motul 8100 X-Clean 5w-40 Fully Synthetic Car Engine Oil
RRP £52.00
£40.99
Price Beater
Millers Oils XF Premium C3 5w-40 Fully Synthetic Engine Oil
RRP £38.95
£33.95
Price Beater
Fuchs Titan Race Pro S 10W-50 Ester Fully Synthetic Engine Oil
RRP £63.48
£56.95
Price Beater
Motul 8100 X-Clean EFE 5w-30 Fully Synthetic Car Engine Oil
RRP £53.99
£40.99
Price Beater
Motul 8100 ECO-nergy 5w-30 Fully Synthetic Car Engine Oil
RRP £45.98
£36.95
Price Beater
Millers Oils Motorsport CFS 10w-60 NT+ Nanodrive Fully Synthetic Engine Oil
RRP £91.95
£66.95
Price Beater
Millers Oils Motorsport CFS 10w-40 Nanodrive Fully Synthetic Engine Oil
RRP £65.95
£54.95
Price Beater
PETRONAS Syntium 3000 AV 5W-40 Fully Synthetic Car Engine Oil
Opie Price
£30.95
Price Beater
Millers Oils XF Premium LSPI 5w-30 Fully Synthetic Engine Oil
RRP £34.95
£31.99
Price Beater
Mobil 1 10W-60 Advanced Fully Synthetic Engine Oil
Valvoline SynPower MST C3 5W-40 Fully Synthetic Engine Oil
RRP £44.52
£36.95
Price Beater
Millers Oils Classic Pistoneeze 20w-50 Mineral Engine Oil
Opie Price
£34.99
Price Beater
Millers Oils EE Performance C3 0w-30 Fully Synthetic Engine Oil
RRP £71.95
£52.99
Price Beater
Mobil Super 3000 X1 Formula FE 5w-30 Premium Fully Synthetic Engine Oil
Millers Oils EE Performance 5w-40 Fully Synthetic Engine Oil
RRP £59.95
£58.99
Price Beater
Millers Oils XF Premium C2/C3 5w-30 Fully Synthetic Engine Oil
Opie Price
£34.99
Price Beater
Motul 8100 X-Clean Gen2 5w-40 Fully Synthetic Car Engine Oil
RRP £58.99
£41.95
Price Beater
Valvoline SynPower XL-III C3 5W-30 Fully Synthetic Engine Oil
RRP £55.44
£41.95
Price Beater
Millers Oils Trident Professional 5w-40 Fully Synthetic Engine Oil
RRP £30.95
£27.95
Price Beater
Millers Oils Motorsport CFS 10w-50 Nanodrive Fully Synthetic Engine Oil
RRP £65.95
£52.99
Price Beater
Mobil Super 2000 X1 10w-40 Premium Semi Synthetic Engine Oil
Opie Price
£35.95
Price Beater
Fuchs TITAN SUPERSYN 5W-40 High Performance Fully Synthetic Engine Oil
RRP £29.94
£28.99
Price Beater
Motul 8100 X-cess Gen2 5w-40 Fully Synthetic Car Engine Oil
RRP £53.99
£38.95
Price Beater
Millers Oils Motorsport CFS 10w-60 Nanodrive Fully Synthetic Engine Oil
RRP £63.95
£50.95
Price Beater
TotalEnergies Quartz Ineo FDE 0w-30 Low Saps Engine Oil
Opie Price
£42.95
Price Beater
PETRONAS Syntium 3000 E 5W-40 Fully Synthetic Car Engine Oil
Opie Price
£33.95
Price Beater
Valvoline SynPower FE 0W-30 Fully Synthetic Engine Oil
Opie Price
£34.99
Price Beater
Castrol MAGNATEC 10W-40 A/B Semi Synthetic Car Engine Oil
Opie Price
£32.95
Price Beater
Millers Oils XF Premium C5/C6 0w-20 Fully Synthetic Car Engine Oil
RRP £46.95
£40.99
Price Beater
Millers Oils XF Premium ECO 5w-30 Fully Synthetic Engine Oil
RRP £35.95
£32.95
Price Beater
Shell Helix Ultra Professional AG 5w-30 Pure Plus Fully Synthetic Engine Oil dexos2
Valvoline SynPower FE 5w-30 Fully Synthetic Engine Oil
RRP £41.52
£36.95
Price Beater
Mobil Super 3000 X1 5W-40 Premium Fully Synthetic Engine Oil
Opie Price
£42.95
Price Beater
PETRONAS Syntium 3000 FR 5W-30 Fully Synthetic Car Engine Oil
Opie Price
£31.99
Price Beater
Liqui Moly Top Tec 4200 5W-30 Synthetic Technology Engine Oil
Opie Price
£52.99
Price Beater
Millers Oils Motorsport CFS 0w-30 NT+ Nanodrive Fully Synthetic Engine Oil
RRP £85.95
£65.95
Price Beater
Millers Oils Trident Professional C2/C3 5w-30 Fully Synthetic Engine Oil
RRP £31.95
£28.99
Price Beater
TotalEnergies Quartz Ineo RCP 5w-30 Advanced Synthetic Engine Oil
Opie Price
£67.99
Price Beater
Comma X-Flow Type MF 15w-40 Mineral Car Engine Oil
Opie Price
£24.95
Price Beater
Castrol EDGE 0W-20 C5 Fully Synthetic Car Engine Oil
Opie Price
£50.95
Price Beater
TotalEnergies Quartz Ineo First 0w-30 Advanced Synthetic Engine Oil
Opie Price
£48.95
Price Beater
TotalEnergies Quartz Racing 10w-50 Engine Oil
Opie Price
£33.95
Price Beater
TotalEnergies Quartz 9000 NFC 5W-30 Synthetic Engine Oil
Opie Price
£33.95
Price Beater
Valvoline SynPower MST C3 5W-30 Fully Synthetic Engine Oil
Opie Price
£39.95
Price Beater
Millers Oils EE Performance ECO 5w-30 Fully Synthetic Engine Oil
RRP £57.95
£48.95
Price Beater
Shell Helix Ultra Professional AF 5w-30 Fully Synthetic Engine Oil
Opie Price
£42.95
Price Beater
TotalEnergies Quartz Ineo Xtra First 0w-20 Advanced Synthetic Engine Oil
Opie Price
£50.95
Price Beater
Millers Oils Classic Sport 20w-50 Semi Synthetic Engine Oil
Opie Price
£34.99
Price Beater

Choosing the right API engine oil is essential for maintaining your vehicle’s performance and longevity. At Opie Oils, we stock a comprehensive selection of API oil grades for both petrol and diesel engines. We offer SN, SP, CJ-4, CG-4 oil, and more from leading manufacturers like Castrol, Motul, PETRONAS, and Shell.

Not sure which API oil specification your engine needs? Our easy-to-use vehicle lookup tool can identify the correct oil based on your registration number. Alternatively, our friendly experts are always on hand to provide personalised recommendations to ensure you get the perfect match for your car, van, or motorcycle.

Need more oils and fluids for your vehicle? Explore our full collection now for more car engine oil, as well as additives, power steering fluid, antifreeze, differential oil, axle oil, and gearbox oil.

Shop API engine oil today at Opie Oils and take advantage of free UK delivery on orders over £80, plus fast, reliable shipping backed by our no-leak guarantee.