Diesel, Premium and Regular

If you’re thinking about ways to save cash in your automobile budget, think about evaluating your costs at the pump. The good news, according to our team of experienced mechanics at Christian Brothers in Andover, MN, is that for most vehicles most of the time, it’s just fine to choose regular gasoline rather than forking over extra cash for premium fuel.

There aren’t engine cleaning benefits, and costly gasoline usually doesn’t mean a longer-lasting engine. It’s mostly just a marketing ploy. If you’re not quite sure about what to use to fuel your engine, first check your owner’s manual. If premium is ever required, it will say so. Don’t give the oil industry more profit!

When engines aren’t designed for premium gas, it means they never benefit from the higher-octane fuel. It is all about combustion. Premium fuel ignites at a higher temperature, so it can deal with high levels of compression before reigniting. It also has a lower concentration of heptanes, which also makes it less likely to ignite at low temperatures. Even the government regulators agree – there’s no benefit for it in the average tank.

Even if the owner’s manual does list a need for premium fuel, chances are you don’t always need it. Especially if you drive a 1996 or later because those engines are likely to have technology that adjusts timing properly. With engines that are designed for premium fuel, the low-temperature can mean better performance. The pricey fuel also prevents knocking or pinging noises. But the difference is usually slight, and the price difference is pretty big. If your engine is knocking with normal driving, it’s a different story. For these vehicles, do a little more research or ask our ACE-certified technicians about using the right fuel.

Is There a Diesel vs. Gasoline Difference?

While it’s not usually smart to use premium gas instead of regular unleaded never try diesel in a gas engine. You could stall the engine and make it unusable. You will have to pony up for a system flush. Diesel is thicker and oilier than unleaded, and the engines are different in a few ways. Cars designed for diesel don’t use spark plugs. Instead, the fuel is injected directly and ignited by heat. With gasoline, fuel and air are mixed first and then the spark plugs cause ignition.

Call Christian Brothers Today

If you have questions about how to fuel your engine or if you’re having any problems with your fuel system, give our trusted auto experts in Andover, MN a ring. We do maintenance, pre-pruchase checks and repairs.