Knowing what engine oil to use is essential if you’re going to get every oil change right.
When it’s time for an oil change, knowing what engine oil to use is essential. The answer to that question gets more complex every day. The latest engines are getting smaller and more powerful all the time, and manufacturers are specifying complex full synthetic oils to cope with higher engine pressures and meet fuel efficiency targets.
If you’re driving a muscle car or a European import, the manufacturer may well specify a full synthetic engine oil. Alternatively if you’re driving an older domestic vehicle, the manufacturer may recommend a conventional oil. However, even though that’s the most economical option, a full synthetic will almost certainly look after your engine better. Knowing what engine oil to use at every oil change is essential.
Your owner’s manual will tell you which industry specification, type and grade of oil the manufacturer specifies.
What is Viscosity?
Modern day engines are smaller but more powerful than ever, operating at more than twice the internal pressure of older engines. Castrol® EDGE® is our strongest motor oil, fully synthetic and liquid engineered with Fluid Titanium Technology to make it strong enough to handle the demands of today's engines at all times.
Castrol MAGNATEC’s unique formulation protects from the moment you start, dramatically reducing* engine wear.
Sludge can form in engine oilways, blocking them up to reduce power and engine life. Castrol® GTX® is a premium conventional motor oil that has been helping to extend engine life since 1968. It does so thanks to a double-action formula that cleans away old sludge and prevents new sludge from forming.
Sludge, varnish and carbon can build up in your engine, reducing engine life, power output and fuel economy. Castrol® GTX® ULTRACLEAN has a double-action formula that cleans away sludge and prevents new sludge from forming. It provides 45% better sludge protection than is demanded by tough industry standards.