Filter Results
Brand
  • Comma (7)
  • Granville (24)
  • Faithfull (4)
  • Stp (4)
  • Lucas (1)
  • STIHL (1)
  • Loctite (1)
  • Sealey (6)
  • Neilsen (2)
  • Toolzone (1)
  • Fujifilm (1)
  • Mountfield (1)
  • Wynns (1)
more +
Price (inc. delivery)
Show Results

Car Engine Oils

Buy performance for your car at a great price with OnBuy's mineral, semi-synthetic, and fully synthetic car engine oil. Discover an innovative range that blends affordable engine maintenance with top-quality formulas to keep your car running smoothly with better energy efficiency and fuel economy. Shop OnBuy for free delivery on the best brands in car engine oil like Mannol, Castrol, Mobil, Carlube, and more!

Showing 1-60 of 640 results

Sort By:
  • Popularity
  • Average Rating
  • Price (highest)
  • Price (lowest)
  • Newest

Looking to buy Car Engine Oils?

Whatever make and model you own, keep your car running smoothly on the road with OnBuy's range of car engine oil that will support a healthy motor and stave off any surprise trips to the garage.

Whether you've got a slightly older motor or a speedy sports car, it needs car engine oil to keep turning over day in, day out. You can turn to affordable options that still keep everything nicely lubricated while saving your bank balance, or prioritise performance with innovative formulas that prevent engine wear and deposits on slick and speedy motors.

What are the best brands of car engine oil?

It's hard to find a car engine oil that would let you down in the OnBuy range, but for superior fuel economy and maintenance for your motor you can't go wrong with the likes of Castrol engine oil. Whether it's their top-of-the-range Castrol EDGE, or the non-stop protection of Castrol MAGNATEC for cars that are on the go all day, every day, you'll get a premium product in every bottle.

Then there's the unbeatable value of Carlube, or the leading anti-friction properties of Mannol engine oils that will give you the peace of mind that your car will start every time, even in cold weather.

How do I choose the right car engine oil for my vehicle?

First things first, check your car owner's manual. It's vital that you get the right specification of car engine oil, otherwise you can end up causing serious problems that will result in an expensive trip to the garage.

Once you know that, it's then down to price vs performance - shop brands like Castrol for premium performance or get the protection your car needs at an affordable price with the likes of Mannol, Mobil, and Comma engine oil.

Customers love our best-selling Car Engine Oils

Popular Brands in Car Engine Oils

Total
MANNOL
Castrol
CarPlan
Mobil
STIHL
Faithfull
Lucas
Loctite
Shell
Hilka
Comma
Granville
Liqui Moly
Stp

Our most popular Car Engine Oils

Delivery Address

Sign in to view all of your delivery addresses

OR

Enter your delivery address

×

Wait! You've left
something behind...

You'll only get instant Cashback at OnBuy! Enter your email below and we'll send you a copy of your basket to save you time later.

No thanks, I'm alright for now

By entering your email address, you'll automatically be added to our database, where you can enjoy personalised Cashback offers and early access to our best deals. You can opt out of our emails at any time and we'll never share your details with anyone. Check our Privacy Policy and T&Cs to find out more.

×

Before you go...
Remember, you'll only get instant Cashback on everything at OnBuy!

Want access to personalised offers and the highest Cashback rates? Sign up to our emails below.

No thanks, I'm alright for now

You can opt out of our emails at any time and we'll never share your details with anyone. Check our Privacy Policy and T&Cs to find out more.

This page has expired.

Please refresh the page to continue shopping.

Refresh and continue