Premium gas 90-93 is completely okay to put in a standard vehicle. Car experts say there is no risk of damage to a standard car using premium fuel.

If your car doesn’t require premium, fill up with regular. In a consumer notice, the Federal Trade Commission, notes: “In most cases, using a higher-octane gasoline than your owner’s manual recommends offers absolutely no benefit. It won’t make your car perform better, go faster, get better mileage or run cleaner.”

Premium gives better gas mileage In the real world, it barely affects performance, or fuel economy. Consumer Reports advises that premium should only really be used in your car if your owner’s manual mandates it. In our experience, only a handful of everyday cars are tuned to run better on premium.

Premium diesel: best for high-performance diesel Premium diesel burns quicker and more efficiently, giving you both higher performance and a cleaner engine. Shell V-Power diesel is one of the most commonly used types of premium diesel and is available at Shell petrol stations throughout the UK.

What are the Benefits? For the majority of vehicles, using higher octane fuel may improve performance and mileage and even reduce CO2 emissions when the vehicle is working hard, such as when towing a trailer or carrying heavier than normal cargo, especially in hotter weather.

Yes, SeaFoam when used in a high concentration, i.e. de-carbonizing a 2 stoke motor or lawn mower, or a gunked up car fuel system, a bunch of white smoke will blow out, also a bunch of carbon gunk will also come out. Also run a low concentration several times a year to keep things flowing nice.

Strictly speaking it is not safe to drive your car if the engine is misfiring. If you notice the intermittent loss of power or poor acceleration, you should get to a mechanic as soon as possible. The longer you drive with a misfiring engine the more likely it is that you’ll cause further damage to the engine.