Description
A high-quality, heavy-duty mixed fleet engine oil engineered to have a comprehensive performance profile allowing the fulfilment of a wide range of major engine builder lubrication requirements.
TRUCK-GUARD® 15W-40 is suitable for EURO 2, 3, 4, 5 & US 2002-compliant truck, bus and industrial engines. It is also suitable for Interim Tier 4 / Stage 3B off-highway rated applications, including those fitted with SCR (Selective Catalytic Reduction), and EGR (Exhaust Gas Recirculation) emission control systems.
Outstanding soot handling and sludge dispersancy ensures excellent engine cleanliness, reduced valve-train wear and reduced oil filter restriction at high soot levels – allowing drain interval extension and therefore reduced downtime for fleet operators.
Excellent wear protection results in trouble-free engine performance and long component life – allowing maintenance cost reductions.
Caution: TRUCK-GUARD® 15W-40 is not compatible with DPF (Diesel Particulate Filter) systems.
ROCK OIL TRUCK-GUARD® 15W-40 FAQS
This heavy-duty engine oil is excellent for heavy-duty diesel engines in machines like trucks, construction equipment, and farm equipment. It’s especially well-suited for mixed fleets because you need just one dependable oil for different kinds of engines.
This grade is like your favorite pair of work boots – very reliable in almost any conditions! It actually protects you when you’re breaking in and still keeps going strong when your engine’s warmed up. It’s just right for the average UK temperatures and serves well for mixed fleet applications.
You can think of it as your engine’s trusty sidekick – it manages soot like a professional, wards off wear and tear like a hero, and keeps everything clean and tidy. It’s built to cope with the demanding life of a commercial diesel engine, even when it’s under heavy load.
Yes, definitely! It has all the newest specifications but also performs great with older engines. It’s almost like a universal translator—it knows what the new and old engines need. Just check your manual to ensure it meets the exact specifications.
Hey, it’s fine to go along with what your manufacturer recommends, but this oil is certainly built to endure. Checking the oil regularly is a good idea to really pinpoint when you need to change it – sort of like a check-up for your engine!
This oil remains cool under pressure! The 40-grade factor ensures that it stays at the correct thickness even when your engine is under stress. It’s especially adept at those prolonged motorway journeys.
It’s formulated to be suitable for use with emission control equipment, but it’s not low SAPS. If your car takes low SAPS oil (especially newer Euro VI engines), you might prefer to consider our Elite LS range instead.
Store it in a cool, dry place, away from the elements. Ideally, it should be in-doors at a typical workshop temperature. After opening, keep the lid tightly closed—just as you would with your finest tools!
That’s where this oil really shines! It’s perfect for mixed fleets when you’ve got one good oil for multiple vehicles. It’s like a master key that fits multiple locks – makes life a lot simpler!
Make sure you keep track of when to service your ride, and look out for things like oil getting darker or any weird sounds from the engine. If you’ve got a fleet going on, getting your oil checked regularly is super valuable – it lets you spot problems before they blow up.
Need some tailored advice for your fleet or gear? Our tech crew is always ready to lend a hand – just give them a shout!
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