API is the American Petroleum Institute, which represents America’s oil and natural gas Industry including performance certification for motor oils. Gasoline engine oil categories fall under the ‘S’ (‘Service’) categories e.g. SN, SM, SL. Diesel engine oil categories fall under the ‘C’ (‘Commercial’) categories e.g. CJ-4, CI-4, CG-4. The EC or “Energy conserving” rating applies to gasoline-engine cars and light commercial vehicles. Use of EC oil may result in an…

ACEA is the Association des Constructeurs Europeens d’Automobiles, which represents the interests of European car, truck and bus manufacturers. ACEA standards are split into 3 main categories: A/B: – Engine oils for gasoline and light duty diesel engines. C: – Catalyst compatible oils for gasoline and light duty diesel engines with after treatment devices. E: – Heavy duty diesel engine oils. Each category is further sub-divided with a letter designation…

The correct oil specification will have a significant effect on the performance, reliability and fuel economy of your vehicle. Oils are becoming more and more complicated and specific to particular engine types. You need to use the correct viscosity, match the industry standard and follow the manufacturer specifications. Selecting the wrong oil can cause major engine damage and reduce fuel economy, adding to running costs. Using cheap low quality oil…

Generally the answer is yes for older vehicles, as diesel engine oils have higher detergency levels. It is important to refer to your vehicle manufacturer’s handbook to establish exactly which specification of oil is required. This is vital if your car has extended service intervals and you are still within the warranty period. New vehicles are designed in a way that allows the same oil to be used whether the…

The “W” stands for “Winter” and gives the viscosity measured at the lower temperature range.

Low Sulphated Ash, Phosphorus and Sulphur. This type of oil is intended for use as catalyst compatible oil in vehicles with Diesel Particulate Filters (DPF) and Three Way Catalyst (TWC)

Care should be taken to select the oil which meets the engine manufacturers requirements usually be means of performance criteria eg ACEA, API or Manufacturer’s standards. Careful note should also be taken of the recommended viscosities.

CREST Ultramax and Ecomax Motor oils meet and exceed the same performance standards as these two products. CREST Ultramax oils are Top-performance, high-quality oils formulated with full synthetic base oils and top tier additives to provide an increased level of performance. The CREST Ultramax and Ecomax range of engine oils conform to specifications laid down by the global Automotive manufacturers, such as Mercedes-Benz, BMW, Porsche, Volkswagen, AUDI, Toyota, Honda, Renault-Nissan,…

Synthetic engine oils are superior to conventional oils because they help maximize horsepower, improve fuel mileage and provide a smoother, cooler operation for the engine, prolonging engine life. Many vehicle owners feel that the benefits of using a synthetic motor oil are worth the extra cost.

No. Synthetic engine oils do not increase the chance of sludge. CREST motor oils are 100% anti-sludge guaranteed.

No. Synthetic engine oils do not increase oil consumption. Infact, the synthetic oils should reduce the oil consumption and top-ups

No. Synthetic motor oils are perfectly safe and compatible for all rubber seals.

This is only true if the engine is already in a bad condition and the blow-by problem exists prior to using a synthetic engine oil. The synthetic Motor oil will clean the engine deposits, improving the fuel economy.

The current generation engines, being compact are running at very high temperatures. Measuring the viscosity at 100°C was not too representative of the temperatures reached today by the latest generation of engines. Therefore a standard test was introduced to measure viscosity at 150 °C, and under a high shear rate, so as to really examine the ability of the oil. Hence what HTHS (High Temperature, High Shear) viscosity stands for,…

The current generation engines, being compact are running at very high temperatures. Measuring the viscosity at 100°C was not too representative of the temperatures reached today by the latest generation of engines. Therefore a standard test was introduced to measure viscosity at 150 °C, and under a high shear rate, so as to really examine the ability of the oil. Hence what HTHS (High Temperature, High Shear) viscosity stands for,…

The oil drain interval depends on the frequency of use of your car and also on the type of driving you do. For ordinary daily driving, you should follow the OEM’s recommendations, either in your service hand book or on the in-car display. If you take part in track-days or performance races, you should shorten the oil drain intervals. Our technical desk will be happy to discuss the possibilities according…

The CREST Engine oils are fortified with high performance additives to offer the best engine performance. Any additional additives or supplements used in the engine oil are unnecessary and may even have a negative effect on the engine performance.