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425 Highway 79, Marlboro Township

Regular, Synthetic Blend, or Synthetic Oil Change at GR Auto Service (Up to 55% Off)

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Auto experts perform oil changes that help reduce debris in the engine and enable it to keep running smoothly

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
oil change
6 ratings4 reviews
6 days ago
They never try and up sales you. A lot of the companies that offer oil change services here. Always find something that want to charge you 100’s if not 1000’s to fix something they “find” GR Auto doesn’t do that and if you need a repair they tell you how much time you have to get it done.
28 ratings21 reviews
July 21, 2020
GR is a great place for all auto repairs and maintenance. They do very professional work at a reasonable price. I Highly recommend!!!
6 ratings6 reviews
June 8, 2020
Honest, nice people who you can trust. Did a great job on my car
1 ratings1 reviews
May 14, 2020
awesome service!
8 ratings5 reviews
March 13, 2020
Amazing! Professional and friendly. I know I can trust them
terrylobueTOP REVIEWER
9 ratings8 reviews
February 21, 2020
Very honest and good prices. Also, very nice
8 ratings6 reviews
February 20, 2020
Went for Oil change. It's a small shop but e checked the car thoroughly and did the battery check too. No over selling pressure. it was really nice experience, I would go to him again.
23 ratings18 reviews
February 18, 2020
I had great experience with this deal! Good price! Very nice people working in this auto body shop! Service and customer care just perfect! Thank you so much! Def. will be back and highly recommend !
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Customer Photos

  • Photo submitted by Lydia
  • Photo submitted by Lydia
  • Photo submitted by Lydia
  • Photo submitted by Lydia

What You'll Get

Choice of:

  • Regular Oil Change, Safety Inspection, and Battery Test
  • Synthetic Blend Oil Change, Safety Inspection, and Battery Test
  • Synthetic Oil Change, Safety Inspection, Battery Test, and Optional 50% off Tire Rotation Service

Horsepower: An Estimate of Engines’ Energy

A fine-tuned engine performs at peak capacity, running smoothly and generating more horsepower. Read on to learn more about horsepower and what it means to work.

An engine that packs a lot of horsepower is an engine that is ready to work. The 18th-century engineer James Watt coined the term to help sell steam engines to mills and mining operations. Watt estimated that an average horse, per minute, could perform 33,000 foot-pounds of work—meaning it could pull 330 pounds a total distance of 100 feet. It was just a rough estimate, but Watt’s calculation has endured as an official unit for measuring engines’ work.

The Benefits of Horsepower

The Model T only had 20 horsepower, but modern cars have left Henry Ford’s creation in the dust. Popular cars, like the Camry or CR-V, house engines that provide 150+ horsepower, an ample amount for running errands and towing kids’ wagons behind them. High-performance luxury cars, meanwhile, boast more than 700 horsepower for more powerful acceleration, and trucks that need to carry heavy loads often fall within the 300–400 range.

Bonus Points

  • The unit could have just as easily been _pony_power, since Watt originally calculated that an average mine pony could do 22,000 foot-pounds of work. To arrive at horsepower, he simply increased that number by half.
  • Watt’s work on work was so influential that a fundamental unit of modern science bears his name.
  • Incidentally, the electrical equivalent of one horsepower is 746 watts, or roughly the same energy it takes to totally shred a Van Halen guitar solo.

The Fine Print

Promotional value expires 180 days after purchase. Amount paid never expires. Appointment required. Not valid for customers active within the past 12 month(s). Limit 1 per household. Valid for up to five quarts of oil and standard oil filter. Additional charge for vehicles requiring more than 5 quarts of oil or a special oil filter. Sales Tax, Job Supplies and Hazardous Waste Fee is not included and will be collected at the time of service. Limit 1 per person. Limit 1 per visit. Must use promotional value in 1 visit(s). Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

GR Auto Service

Auto Repair & Maintenance, Oil Change