Castrol GTX A3/B4 10W-40 Engine Oil 5L
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Castrol GTX A3/B4 10W-40 Engine Oil 5L
Recent developments affecting international oil supply have reduced the availability of some oil‑based products. To ensure fair access for all customers, we’ve introduced a temporary purchase limit on this product. We’re monitoring the situation closely and will lift the limit as soon as supply returns to normal.
Castrol GTX’s 3X-Clean formula has been developed to fight the three main causes of engine sludge: heat, contaminants and short trips. By cleaning away existing sludge and creating a barrier that helps stop deposits from forming, Castrol GTX keeps engines cleaner for longer, 35% cleaner than industry standards.* This means drivers and their vehicles enjoy more years together.
0% interest for 4 months on purchases over £99
Balances after this period or transactions under £99 are charged interest at the standard variable rate. The minimum payment due still applies to 0% offer balances. Any remaining balance due after the 4-month promotional period or any transactions under £99.00 will be charged interest at 23.9% p.a. (variable). In order to maintain the 0% offer, you need to keep up monthly repayments and stay within your credit limit.