Skip the auto shop - Our mechanics make house calls

Q: Is there any reason that a mechanic would have put a MT58 battery in instead of a MT86?

asked by on

I've been dealing with the same company for the last 3 years, including the several batteries that I have had through them. I got the original one in Feb of 2015 and have had 4 more under warranty since then. Every time they put one in, it lasts anywhere from a couple of weeks to a couple months before it dies again. This week I was driving and my gas stopped, brakes locked and my power steering went. The new garage said this was because my battery was so fried, but that it was also a MT58, which is much too small for my car. This is obviously wrong and I'm thinking that they have always used the MT58, but just charged me for the MT86. Price doesn't make the overall difference but it obviously plays a huge role in the overall well-being of my car. What do you think?

My car has 92000 miles.
My car has an automatic transmission.

I have verified with Interstate that your car does in fact use the MT-86 battery. It is unclear why your mechanic may have installed the MT-58, but this may very well be the cause of your batteries not lasting more than a few months. When a battery is subjected to starting conditions or demands that are much greater than what it is designed to handle as you can imagine, this will very quickly destroy it. I would recommend having an expert from YourMechanic come to your location to diagnose and replace your battery with the correct application.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Is there any reason that a mechanic would have put a MT58 battery in instead of a MT86?

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

Get a quote

What others are asking

Q: Is it legal to have a clear yellow sticker over a headlight or fog light?

Headlight covers are legal, as long as the amount of light that gets through meets state requirements. Each state has its own requirements, so you will need to contact your state police or highway patrol to know for sure. Local...

Q: Battery sparking

Hi There, This may sound a bit like stating the obvious, but this happens all too frequently even with some very technically able mechanics; check to be sure the positive cable is connected to the positive terminal and negative to...

Q: Problems with shifter

Hello, I am assuming that your shift is hard to get out of park and maybe past reverse. In August of 2010, Dodge put out a campaign for this issue. A campaign is not a recall, but it is similar....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.