Castrol GTX Engine Oil 15W-40 A3/B3 with Sludge Protection – 1 Litre (1L). Castrol GTX 15W-40 A3/B3 is a high-quality mineral engine oil engineered to protect your engine from sludge and wear. Featuring Double Action technology, it actively frees your engine from old deposits while providing superior protection against harmful sludge build-up caused by daily driving conditions such as stop-and-go traffic, harsh weather, and extended drain intervals.
eBay