Learn More About Synthetics
THE EXTREME MATCHUPA pair of identical cars - one using the leading 5W-30 conventional motor oil, the other Castrol SYNTEC 5W-30 synthetic oil - running side-by-side on dynamometers. We ran the cars under grueling conditions beyond anything you'd encounter on the road - intense heat, heavy load, high speed - going all out, day-and-night, until only one car kept running. The result? In challenge after challenge against all leading motor oils, the SYNTEC car won. SYNTEC's patented technology is engineered for superior engine protection and performance. Bottom line, SYNTEC outperforms all leading motor oils. So trade up to Castrol SYNTEC. Hey, yours is not just any car. Why use just any oil?
So independent tests prove it...Castrol SYNTEC provides superior engine protection and performance.
BENEFITS OF SYNTHETICSSynthetic formulas can be engineered to meet tough performance targets, as well as wider grade ranges, that can't be delivered with conventional motor oils. The use of synthetics helps keep engines cleaner longer. All motor oil is made up of two main ingredients:
1. Base oil (the majority of the formula): The base oils used in synthetic motor oils are of much higher quality than those used in conventional motor oils and are chemically converted to provide consistent and predictably superior performance.
2. Performance additives: Synthetic formulations are engineered with specialized performance additives to:
- Help fight off the formation of sludge and deposits created by the damaging by-products of combustion such as fuel, water, acid, wear, metals and dirt.
- Provide superior protection in extreme driving conditions.