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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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394 Products (Viewing: 120 - 180 of 394)

Millers Oils XF Premium C2 0w-30 Fully Synthetic Engine Oil
RRP £63.99
£51.95
Price Beater
Valvoline All-Climate 20w-50 High Quality Engine Oil
Opie Price
£34.99
Price Beater
Castrol GTX 15W-40 A3/B3 Car Engine Oil
Opie Price
£30.95
Price Beater
Motul 8100 Eco-Clean 0w-30 Fully Synthetic Car Engine Oil
RRP £83.99
£69.95
Price Beater
PETRONAS Syntium X VN 5W-30 Fully Synthetic Car Engine Oil
Motul 8100 ECO-Lite 0w-20 Fully Synthetic Car Engine Oil
RRP £79.99
£58.99
Price Beater
Shell Rimula R6 LM 10W-40 CJ4 Fully Synthetic Heavy Duty Engine Oil
Opie Price
£67.99
Price Beater
Millers Oils Multifleet 15w-40 Mineral Heavy Duty Engine Oil
Opie Price
£31.99
Price Beater
Fuchs Titan Truck Plus 15w-40 High Performance Engine Oil
Opie Price
£31.99
Price Beater
Millers Oils Trident Professional C5 5w-20 Fully Synthetic Engine Oil
RRP £42.99
£36.95
Price Beater
Millers Oils Motorsport CFS 15w-60 Nanodrive Fully Synthetic Engine Oil
RRP £70.99
£54.95
Price Beater
Liqui Moly Top Tec 4300 5W-30 Synthetic Technology Engine Oil
Opie Price
£45.95
Price Beater
TotalEnergies Quartz 9000 5W-40 Synthetic Engine Oil
Opie Price
£42.95
Price Beater
Shell Helix Ultra Professional AF 5w-30 Fully Synthetic Engine Oil
Opie Price
£54.95
Price Beater
Fuchs Titan Supersyn Longlife 5w-40 Synthetic Engine Oil
Opie Price
£44.95
Price Beater
Valvoline Hybrid C2 5W-30 Fully Synthetic Engine Oil
Opie Price
£49.99
Price Beater
Motul 8100 Eco-Clean 0w-20 Fully Synthetic Car Engine Oil
RRP £83.99
£66.95
Price Beater
PETRONAS Syntium 7000 DME 0W-20 Fully Synthetic Car Engine Oil
Opie Price
£55.99
Price Beater
Liqui Moly Top Tec 6600 0W-20 Synthetic Technology Engine Oil
Valvoline SynPower DX1 5W-30 Fully Synthetic Engine Oil
Opie Price
£43.99
Price Beater
Millers Oils Trident Professional 0W-20 Fully Synthetic Engine Oil
RRP £47.99
£40.99
Price Beater
Liqui Moly Touring High Tech 10W-30 Mineral Engine Oil
Liqui Moly Special Tec LL 5W-30 Synthetic Technology Engine Oil
Liqui Moly Synthoil Energy 0W-40 Fully Synthetic Engine Oil
Fuchs TITAN GT1 PRO FPW03 5W-30 Engine Oil
Opie Price
£47.95
Price Beater
TotalEnergies Quartz Ineo C3 5w-40 Advanced Synthetic Engine Oil
Opie Price
£47.95
Price Beater
Mobil Super 2000 Formula P 10w-40 Semi-Synthetic Engine Oil
Comma X-Flow Type PD 5w-40 Fully Synthetic Car Engine Oil
Opie Price
£44.95
Price Beater
Comma X-Flow Type G 5w-40 Fully Synthetic Car Engine Oil
Opie Price
£35.95
Price Beater
PETRONAS Syntium 3000 FR 5W-30 Fully Synthetic Car Engine Oil
Opie Price
£50.95
Price Beater
Motul 8100 X-Power 10w-60 Fully Synthetic Car Engine Oil
RRP £86.99
£73.99
Price Beater
Valvoline Hybrid C3 5W-30 Fully Synthetic Engine Oil
Opie Price
£46.99
Price Beater
Liqui Moly Special Tec F 0W-30 Synthetic Technology Engine Oil
Fuchs TITAN SUPERSYN 10W-60 High Performance Fully Synthetic Engine Oil
Motul 8100 Power 5w-40 Fully Synthetic High Performance Ester Engine Oil
Free Shipping
RRP £119.99
£97.99
Price Beater
Millers Oils Multifleet 10w-40 Semi Synthetic Heavy Duty Engine Oil
Opie Price
£32.95
Price Beater
Castrol EDGE Professional A5 0W-30 (Volvo) Fully Synthetic Engine Oil
Castrol Vecton Long Drain 10W-40 E6/E9 Fully Synthetic Engine Oil
Opie Price
£53.95
Price Beater
Millers Oils XF Premium C3 0w-30 Fully Synthetic Engine Oil
RRP £56.95
£53.95
Price Beater
Millers Oils EE Performance 10w-60 Fully Synthetic Engine Oil
RRP £62.95
£52.99
Price Beater
Millers Oils EE Performance C2/C3 5w-30 Fully Synthetic Engine Oil
RRP £68.99
£61.99
Price Beater
Millers Oils EE Performance 5w-40 Fully Synthetic Engine Oil
RRP £59.95
£58.99
Price Beater
Motul Classic 2100 15w-50 Semi Synthetic Car Engine Oil
Silkolene Comp 4 10w-40 XP Ester Based Semi Synthetic Bike Engine Oil
RRP £59.69
£57.95
Price Beater
Elf Sporti 9 C3 5w-30 High Performance Engine Oil
Opie Price
£37.99
Price Beater
Elf Sporti 9 Long Life 5w-30 High Performance Engine Oil
Shell Helix Ultra Racing 10W-60 Fully Synthetic Car Engine Oil
Opie Price
£20.95
Price Beater
Castrol EDGE 0w-40 A3/B4 Fully Synthetic Car Engine Oil
Opie Price
£61.99
Price Beater
Shell Helix Ultra Professional AF 5w-20 Fully Synthetic Engine Oil
Opie Price
£59.95
Price Beater
Motul 8100 X-cess 5w-40 Fully Synthetic Car Engine Oil
RRP £58.00
£52.99
Price Beater
Shell Helix HX7 AF 5w-30 Professional Synthetic Technology Engine Oil
Opie Price
£51.95
Price Beater
Millers Oils Motorsport CFS 0w-30 NT+ Nanodrive Fully Synthetic Engine Oil
Free Shipping
RRP £92.99
£80.95
Price Beater
Liqui Moly Molygen New Generation 5W-50 Advanced Full Synthetic Engine Oil
Millers Oils EE Performance ECO 5w-30 Fully Synthetic Engine Oil
RRP £57.95
£48.95
Price Beater
Febi Bilstein SAE 5W-30 HC-FO Engine Oil
Opie Price
£45.95
Price Beater
Motul 8100 X-Max 0w-40 Fully Synthetic Car Engine Oil
RRP £79.99
£71.95
Price Beater
Amsoil European Car Formula 5W-30 Improved ESP Synthetic Engine Oil
Free Shipping
RRP £91.49
£80.95
Price Beater
Motul 8100 X-Clean EFE 5w-30 Fully Synthetic Car Engine Oil
RRP £58.99
£50.99
Price Beater
Millers Oils Truckmaster 15w-40 Semi Synthetic Heavy Duty Engine Oil
Opie Price
£32.95
Price Beater
Millers Oils XF Premium 0w-40 Fully Synthetic Engine Oil
RRP £62.99
£49.99
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.