Later specification oils are usually, but not always, suitable for older cars, while older specification oils shouldn’t be used in newer cars. Carlube is the largest independent oil manufacturer in the UK and the biggest automotive brand behind British sporting events. With Tetrosyl’s extensive range of engine oils, lubricants and car care products, it can meet the ever changing demands of modern vehicles. The ACEA is the acronym (in French) for the European Automobile Manufacturers' Association. It replaced the earlier CCMC in 1996. The association sets certain standards for engine oils.

A drop in oil level can do more damage in a modern engine with a smaller sump – oil spends less 'recovery time' in the sump cooling down and hotter oil will break down and oxidise more rapidly leading to increased wear. If you have a diesel car fitted with a DPF ( diesel particulate filter) you must use one of the latest 'low SAPS' (Sulphated Ash, Phosphorous, Sulphur) oils.Modern car engines need oils that are really durable, and last for thousands of miles between services. Modern oils protect against corrosion and sludge formation, and contain detergent additives to keep the engine clean. Carlube and Ginetta - A Partnership that puts the "Great" in "Great Britain". Bristish Motorsport Sponsorship has been key to Carlubes marketing campaign since the brand was launched in 1988. Most recently Carlube have become the (OE) original equipment fill in all the new Ginetta road and race cars. The Ginetta trio of Championships will be powered by Carlube Triple R engine oil - Road, Rally, Race. Triple R 5W-30 R-Tec 20 is a fully synthetic engine oil developed with the very latest synthetic technology for today's modern vehicle requirements. Many car manufacturers develop their own engine oil specifications. Most notable are Volkswagen and Mercedes-Benz, but BMW, GM, Porsche, PSA and others also have their own.

The manufacturer may also give an acceptable equivalent ACEA or API specification, though this might be for 'emergency top-up only'.

Halfords 5W30 Fully Synthetic Oil 5 - 5 Litres

Not all engines are the same, so it shouldn't be a surprise that oils aren't the same either. The specification is another way that engine oils differ. Fully synthetic engine oils offer increased engine protection and longer engine life, reduced friction and enhanced lubrication during extreme chilly weather starts and increased fuel economy. More and more often, these are very specialised 'long life' oils designed to support very long intervals between services. Some other common car models recommend 0W-30 oil, which is similar to 5W-30 but will be less viscous at lower temperatures. Certain Vauxhall Astra, Vauxhall Corsa and MINI Cooper models recommend this. Engine oils meeting the C1 specification will increase the life of after-treatment devices and improve the vehicle's fuel economy.