Q: Advice on which type of gas to use
Hi. I've bought this previously owned car and I was told to use premium gas. I know it is recommended, but I would like to save some money. So, I was wondering if it would only have performance issues or if the regular gas could damage the engine. Can you give me some advice? Thanks.
If you look at your fuel gage, it will say "premium fuel only". The vehicle was designed to only run on this fuel. If you try and run the lower grade fuels, you will run the risk of damaging the motor from preignition. This means your engine will burn holes in the tops of the pistons.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
How do you turn on the Auto Headlight function?
If your car is equipped with auto headlights, this is more than a convenience feature. They will automatically turn on and off based on the level of ambient light outside. That ensures better safety at all times while driving (we’ve...
Car wobbles
Hi, check the rim and see if it is damaged at all. You may have hit the rim and the body of the car will be fine. The wheel however is misaligned, especially if the steering wheel is wobbling a...
Car starts, but sputters and acts like it wants to stall
The first question I have for you is whether it has had its timing belt (https://www.yourmechanic.com/article/how-does-a-timing-belt-work) replaced? The maintenance interval on your timing belt is 105,000 miles (https://www.yourmechanic.com/article/how-long-does-a-timing-belt-last). A broken or failing timing belt (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-timing-belt) can certainly display these sort...
Smelling has while driving
This could be many possibilities such as a fuel leak (https://www.yourmechanic.com/services/oil-fluid-leak-inspection), or a problem with the air/fuel mixture (i.e. running to rich) which could be a result of many possibilities. I would suggest having a certified expert, like one from...
Can a bad alternator cause the car to jerk loose power
Hello, thanks for writing in about your 2000 Ford Escort. It does sound like the alternator (https://www.yourmechanic.com/services/alternator-replacement) is not charging but this would need to be tested to make sure it is in face the alternator at fault and not...
Can I drive with just one lug nut loose on one tire? The nut is stripped so I cannot take it off. But 3 out of 4 nuts are on tight
Hi there. I've seen many vehicles on the road with a lug nut missing and it does seem to work. However, what these people are unaware of is that improper/uneven wheel nut torque is a major cause of brake vibrations....
My car shifts gears but doesn't move
The vehicle not moving in any gear for a manual transmission is going to most likely be a clutch is not engaging from a worn out clutch disc. You will need to have the transmission removed and new clutch kit...
What motor oil can I use for 2008 C300 4matic
Your vehicle can use full synthetic 0w30, 5w30, 0w40, 5w40 MB approved only is recommended. You will see on the bottles MB approved.
Related articles
How Air Filters Affect Horsepower
Air Air filters work to clean the air entering your engine’s combustion chamber. A good supply of air and oxygen is very essential so that the engine can burn fuel efficiently and give you the horsepower you need to drive....
How Engine Timing Works
Your Your car engine consists of a number of rapidly moving parts, including a crankshaft, camshaft, pistons, engine valves, rods and pulleys. As the piston moves up and down, the valves move correspondingly, in and out. The crankshaft spins, and...
How to Troubleshoot a Car That is Hard to Start
"Car not starting" is a common complaint among car owners and is caused by faulty car batteries, spark plugs, car starter, or fuel pump.
Browse other content
Cities
Maintenance