Old truck oil additives - Castle Products

Old truck oil additives

003 dipstick IIBy Bob Carpenter

Engine oil is so important to the operation of pickup trucks that it can be likened to blood in humans' veins. Without oil, engine parts gall and seize up. Use oil for too long and the necessary properties wear out, so your truck's engine wears out too. Good engine oil is critical to ensuring a long and happy life for your truck engine. But, as is often the case with something so important, certain myths seem to work their way into the thinking of enthusiasts. See how many of these you believe — or once believed.

1. You Should Change Your Oil Every 3, 000 Miles

That's just the quick oil change places (and maybe your dealer) trying to get you to come back more often and spend money with them. Modern oils are designed to last much longer than that. The key is to read your owner's manual. The truck manufacturer knows the right answer. For example, the average recommended interval for oil changes on cars in 2010 was 7, 800 miles. Cummins even suggests 15, 000 miles for engines in certain use categories (not much idling, no redline use, longer trips, etc.).

001 Shell Rotella T6 Pour low rez II2. You Should Change Your Oil Before a Road Trip

If the oil change interval is not scheduled to occur before or during your trip you're just wasting money. You should, of course, make sure that the oil level is correct and that there are no new leaks.

3. Change Your Oil When It Is Black

The quick-lube places love to show you a dipstick with black oil on it and explain that this is the reason the oil needs to be changed. So what if it's black? Modern oil is designed to trap and carry the elements that, if left on the metal engine parts, would become sludge. They are perfectly fine circulating in the oil until it's time for a scheduled oil change. Also, different additives in the oil change the color of the oil over time, even when there is still plenty of life left in it. Again, keep track of your mileage and change it when you get to the mileage recommended by the vehicle manufacturer.

4. Change a New Truck's Oil After the First 3, 000 Miles

The thinking is that a new engine has a lot of metal particles resulting from the breaking-in process. While this is somewhat true, the engine oil filter and the oil are both designed to remove these particles from the system. It should be noted that Honda uses a special break-in oil in some of its engines, and the company doesn't want you to remove it too soon. If other manufacturers go this route in the future it's going to be hard as heck to convince some people to leave the oil in until directed to replace it.

5. Don't Use Synthetic Oil in an Old Engine; It Will Leak

This myth perpetuates the belief that synthetic oils are thinner and slipperier, so it will gush out of all the cracks, holes and missing gasket pieces that regular oil is perfectly happy to avoid. That's rubbish. Synthetic oil leaks no worse than petroleum-based oils.

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Popular Q&A

What oil in my knackered old Toyota Truck?

what oil I can I put in my engine, is 5W/10, or 30W/80 best to put in it, its done 500,000 miles and totally had it, the sea foam I put it together with cos I never had any gaskets is giving way, and there's oil everywhere on it, please help im fed up with asking, all the best, I know im an idiot, cheers.

Definitely a case for Olive Oil, or maybe Popeye if that is easier.

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