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The below products may be vehicle-specific. Add your vehicle to shop what fits.

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The below products may be vehicle-specific. Add your vehicle to shop what fits.

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Shop Full Synthetic Oils

Full Synthetic Oils

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140 Results

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Showing 1 - 34 of 140 Results

Castrol

Castrol EDGE Engine Oil - 5W-30, A3/B4, 5 Litre

$71.49 ^{^} $129.99 ^{^}

(1137)

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Penrite

Penrite Enviro+ GF-S Engine Oil - 5W-30 5 Litre

$65.99 ^{^} $119.99 ^{^}

(294)

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Nulon

Nulon Apex+ 10W-40 High Performance 5 Litre

$64.29 ^{^} $116.99 ^{^}

(20)

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Penrite

Penrite HPR 5 Engine Oil - 5W-40 6 Litre

$86.39 ^{^} $132.99 ^{^}

(269)

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Gulf Western

Gulf Western Syn X 6000 SN/CF/BMWLL/POR Full Synthetic Oil - 5W-40, 5L

$44.99 ^{^} $81.99 ^{^}

(8)

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Nulon

Nulon Full Synthetic Long Life Engine Oil - 5W-30 5 Litre

$75.99 ^{^} $116.99 ^{^}

(215)

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Mobil

Mobil 1 Triple Action 0W-40 Engine Oil 5 Litre

$76.99 ^{^} $139.99 ^{^}

(34)

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Catalogue Out Now

Ends Sunday
27th September 2026
Gulf Western

Gulf Western Syn-X Plus Engine Oil - 5W-30 - 5 Litre

$55.99 ^{^} $79.99 ^{^}

(149)

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Castrol

Castrol EDGE Engine Oil - 5W-30, LL 5 Litre

$95.89 ^{^} $136.99 ^{^}

(245)

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Penrite

Penrite Enviro+ Engine Oil - 0W-20 5 Litre

$86.19 ^{^} $114.99 ^{^}

(166)

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Gulf Western

Gulf Western SYN-X 4000 Engine Oil 5W-30 5 Litre

$55.99 ^{^} $79.99 ^{^}

(146)

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Penrite

Penrite Full Synthetic Everyday Engine Oil - 10W-40 4 Litre

$89.99 ^{^}

(215)

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Penrite

Penrite HPR 5 Engine Oil - 5W-40 5 Litre

$116.99 ^{^}

(863)

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Castrol

Castrol Edge Engine Oil - 5W-40, 5 Litre

$83.99 ^{^} $119.99 ^{^}

(115)

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Penrite

Penrite Enviro+ C-3 Engine Oil - 5W-30 5 Litre

$83.99 ^{^} $119.99 ^{^}

(24)

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Castrol

Castrol MAGNATEC Engine Oil 5W-30 A5 6 Litre

$94.49 ^{^} $125.99 ^{^}

(117)

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Mobil

Mobil Super All-in-One Formula D1 5W-30 5 Litre

$62.99 ^{^} $89.99 ^{^}

(38)

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Nulon

Nulon Full Synthetic Long Life Engine Oil - 5W-40 5 Litre

$79.49 ^{^} $105.99 ^{^}

(67)

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Nulon

Nulon Full Synthetic Apex+ Multi 23 Engine Oil 5W-30 10 Litre

$157.49 ^{^} $209.99 ^{^}

(81)

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Penrite

Penrite HPR 10 Engine Oil - 10W-50 5 Litre

$87.69 ^{^} $116.99 ^{^}

(219)

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Castrol

Castrol EDGE Engine Oil - 0W-20, LL IV, 5 Litres

$104.99 ^{^} Price after promo $139.99 ^{^}

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Penrite

Penrite HPR 5 Engine Oil - 5W-40 1 Litre

$42.99 ^{^}

(104)

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Valvoline

Valvoline Synpower XLIII Engine Oil 5W-30 6 Litre

$99.99 ^{^}

(35)

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Castrol

Castrol EDGE Engine Oil - 5W-30, A3/B4, 1 Litre

$36.99 ^{^}

(91)

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Penrite

Penrite Enviro+ Engine Oil - 5W-30 5 Litre

$107.79 ^{^} $153.99 ^{^}

(75)

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Penrite

Penrite Full Synthetic Engine Oil - 5W-30 4 Litre

$95.99 ^{^}

(121)

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Castrol

Castrol EDGE Engine Oil - 10W-30, 5 Litre

$76.29 ^{^} $108.99 ^{^}

(75)

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Penrite

Penrite Full Synthetic Engine Oil - 10W-40 1 Litre

$32.99 ^{^}

(91)

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Gulf Western

Gulf Western SYN-X 7000 SL/CF Full Synthetic Oil - 5W-30, 5L

$66.49 ^{^} $94.99 ^{^}

(5)

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Penrite

Penrite Enviro+ C3 Engine Oil 5W-30 7 Litre

$152.99 ^{^}

(133)

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Gulf Western

Gulf Western Euro Energy Engine Oil - 5W-30 - 5 Litre

$107.99 ^{^}

(147)

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Penrite

Penrite Enviro+ Engine Oil - 5W-40 5 Litre

$88.19 ^{^} $125.99 ^{^}

(81)

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Castrol

Castrol EDGE Engine Oil 5W-30 LL 1 Litre

$35.99 ^{^}

(41)

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Mobil

Mobil Super 3000 Engine Oil 0W-20 5 Litre

$103.49 ^{^} $137.99 ^{^}

(31)

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Showing 1 - 34 of 140 Results

Performance & Durability With Our SUPER Range of Full Synthetic Oil

Enhance your engine's performance with our SUPER range of full synthetic engine oils at Supercheap Auto. Designed for superior performance and protection, our synthetic oils are expertly engineered to improve your engine's functionality. With advanced additives and innovative technology, our synthetic engine oils ensure optimal lubrication, reduced friction, and enhanced fuel efficiency, keeping your engine running like a dream.

Explore the versatility of our 5W-30 and 5W-40 full synthetic engine oils, designed to meet the demands of modern vehicles seeking quality lubrication. Our 5W-30 and 5W-40 oils provide superior protection against the demands of everyday use, safeguarding your engine from wear and tear over time. It’s important to check the engine oil is suitable for your vehicle and matches your viscosity and API specifications that are recommended in your car manual. Still unsure which full synthetic oil is suitable for your car? Enter your car's registration into the 'My Garage' tool on our website to find which 5W-30 engine oils or 5W-40 engine oils are compatible with your vehicle’s make and model.

Our range is designed for ultimate performance and durability. Crafted from premium synthetic base oils, our fully synthetic formulations offer superior resistance to heat, oxidation, and viscosity breakdown, ensuring long-lasting protection for your vehicle’s engine. Our full synthetic oil works to safeguard your vehicle’s engine, providing sustained protection and reliability throughout its lifespan.

At Supercheap Auto, you can trust you're getting the best quality synthetic oils at affordable prices. Our range of full synthetic oils are from reliable and trusted brands such as Castrol, Penrite, Nulon, Valvoline, Gulf Western and Mobil. Whether you're due for an oil change, need a top up or looking to enhance your engine's performance, we've got everything you need. For more information, check out our handy DIY guide on how to check and top up engine oil.

Frequently Asked Questions - Full Synthetic Oil

What is synthetic oil?

Synthetic oil is a specially engineered lubricant made from chemicals instead of natural oil. It's designed to offer better engine protection and performance compared to regular oil. With its advanced formula, synthetic oil lasts longer, resists heat better, and helps engines run smoother and longer.

What kind of synthetic oil should I use?

The type of synthetic oil you should use depends on your vehicle's requirements, outlined in the owner's manual. Factors such as engine type, driving conditions, and climate influence the choice between full synthetic or synthetic blends. Full synthetic oils offer superior performance and protection, while synthetic blends provide a balance of performance and affordability.

Unsure which full synthetic oil is suitable for your car? Simply enter your car's registration into the 'My Garage' tool on our website to find which synthetic oils are compatible for your specific vehicle make and model. Additionally, check out our handy DIY guide if you want to learn more about the signs when your vehicle requires an oil change.

What is the difference between 5W-30 oil and 5W-40 oil?

The main difference between 5W-30 and 5W-40 oil lies in the viscosity ratings, indicating how the oil behaves at different temperatures. Both oils have the same cold temperature viscosity (5W), but 5W-40 oil has a slightly higher viscosity at operating temperatures compared to 5W-30 oil.