Q: I fill up my gas tank and I put unleaded plus when it is required to put unleaded regular and I always put that on the highway I n

asked by on November 12, 2017

I fill up my gas tank and I put unleaded plus when it is required to put unleaded regular and I always put that on the highway I noticed the temperature was going up and down not drastically but it was making movement and on a complete stop it shaked

My car has 63000 miles.
My car has an automatic transmission.

Car is running hotter than normal Inspection $79.99 - $99.99 Get a Quote

Hi Patricia. Thanks for contacting us today. While running the recommended fuel to your car is important, it’s less likely that the swap to a higher octane has created this temperature issue. It’s most likely that there is a different mechanical problem - such as an obstruction of debris in the cooling lines, or a faulty coolant temperature sensor or radiator thermostat. It’s also possible that a fuel system component is clogged with excessive carbon deposits or needs to be serviced. I think the best thing to do have a professional mechanic complete an on-site inspection to determine what is causing this problem - so that any repairs or service can be completed before damage occurs.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Multiple things that could be wrong with my Mazda?

With all the different issues with your vehicle i would recommend having a mechanic like one from YourMechanic come to you and check all the problems out for you. You may have suspension and transmission issues than may do more...

Bright lights come on when I use right blinker. Do I need Turn Signal Hazard Switch or the Turn Signal Lever?

Hi Redcgarland. Thanks for contacting us tonight. It really depends on what is actually causing this symptom to occur. While it's possible that the turn signal lever is damaged, it's more likely that you have an electrical short within the...

I have a 94 RAM b250 van,the driver side is making a loud clunking noise when turning or driving.upon inspection,the knuckle assem

Worn ball joints and tie rod ends could account for the noise. If you have CV axles in the front, failure of the outboard CV joint would cause similar noise. To have those suspension components inspected, and replaced as needed,...

Put donut on.but it won't spin

You have either put the spare tire space saver on backwards or you have one that is not compatible with your car. If turning it around does not fix it then you will need to have the tire repaired or...

My car has an engine check light orange in colour

You will need to have the Check Engine Light diagnosed by having the computer scanned and any codes diagnosed. Be aware that O2 sensor codes may not be an O2 sensor failure but an engine running lean or too rich....

Belts are cracked and need replacing, okay to leave off a/c belt?

Hello. If the belt driving the A/C compressor only drives the A/C compressor and nothing else, you can remove it with no consequences. The fan shroud is not optional equipment however as it has both a cooling system function and...

Installing new ignition lock cylinder problems.

As far as I know this generation of F150 just requires a small screwdriver and the key to remove the ignition lock cylinder. Push a small screwdriver into the hole in the bottom and push up until you hear it...

Car shaking, squeaking, and clunking

These noises can be caused by a number of different sources. I would need more information, such as where these clunks are coming from and when you are hearing them, to make an accurate diagnosis. I suggest you call the...

Car starting, but not going into gear

The transmission leak would have to be located and fixed then the transmission fluid filled to see if internal damage has been done to the transmission. The leak could be from the transmission or transmission cooler. Once the leak is...

Related articles

The Best Used Cars to Buy If You’re an Architect
Obviously, Obviously, architects appreciate beauty and symmetry. This is not just the case when it comes to their building projects, but also in terms of the vehicles they choose. We have evaluated several used cars, and identified the Mercedes...
A Buyer’s Guide to the 2011 Cadillac STS
Big, Big, bold and beautiful, the 2011 Cadillac STS is a full-size, four-door sedan that promises more than ample room for the entire family, as well as the power and performance you expect from the automaker. 2011 marked the final...
A Buyer’s Guide to the 2013 Acura ILX Hybrid
Acura Acura returns from a spate of years devoted to the higher-end luxury market, and they do so in style with a car that practically invents its own segment. The ILX Hybrid is the half electric portion of the brand...