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892 Old Claremont Road Charlestown, NH, 03603
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
  • SAT: Closed
  • SUN: Closed
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86 Route 10 South Grantham, NH, 03753
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
  • SAT: Closed
  • SUN: Closed
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472 Sunapee Street Newport, NH, 03754
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
  • SAT: Closed
  • SUN: Closed
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Calculate The Cost Of Gas VS. Trading In Your Older Vehicle

Talk with us if you are considering buying a new car or truck. Use our gas calculator to see in black and white the cost of gas verses and new car payment. Simply answer the questions below and you can quickly see if trading in your vehicle is the most cost effective option. You can even calculate projects increases in the price of gas.

How many miles do you drive in a year?

How many miles per gallon does your vehicle get?

Current Gas Price:





Let's talk cheap. Sometimes it is cheaper to drive an older car with lower MPG than to take on a new car payment. Since 2009, J.S. Automotive has been helping drivers weigh their options by calculating the cost of gas for their current vehicle. We also offer affordable tune-ups. Simple general automotive maintenance or minor auto repairs may be all you need to level up your cars fuel efficiency game.

Ask one of our pro mechanics about these preventative maintenance options that can increase your cars fuel efficiency, performance, and life span.

  • Spark Plug Calibration
  • Oil Change
  • New Tires
  • Fuel Filter and O2 Sensors
  • Turbo and Fuel Intake General Maintenance

Call today or come by any J.S. Automotive location in the Southwestern New Hampshire area.

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  • Car Care Aware
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WHAT OUR CUSTOMERS SAY

My wife's 5-yo Ford Edge developed a dead battery on Christmas day. We were able to jump start it, and drive it in to JS Auto in Grantham. Chris was kind enough to fit us in the next day, when they opened, run the full diagnostics, and install a new battery. They were fully booked that whole week, and had one person out sick, but he was able to fit us in even after the holiday. As usual, they were thorough, and did a great job. My wife and I are very appreciative of their going the extra mile to help their customers! , 12/26/2023

J.S. Automotive

J.S. Automotive - Charlestown 892 Old Claremont Road Charlestown, NH 03603 (603) 826-6874
J.S. Automotive - Grantham 86 Route 10 South Grantham, NH 03753 (603) 667-9094
J.S. Automotive - Newport 472 Sunapee Street Newport, NH 03754 (603) 873-4175

Ask any car or truck owner in Southwestern New Hampshire who they recommend. Chances are they will tell you J.S. Automotive.