One or Three Conventional Oil Changes at Reliable Auto Services (Up to 48% Off)

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Up to 48% Off

Customer Reviews

12 Ratings

So nice!
Skylar W. · August 24, 2017
Such a knowledgeable experience. He answered every question I had, He explained everything for me. Super nice, super good service!
Josh G. · July 25, 2017
Wonderful service, quick, efficient. Owner was a really nice man. Thank you!!!
Kristel M. · June 11, 2017

What You'll Get


Choose Between Two Options

  • $19 for a conventional oil change ($35 value)
  • $55 for three conventional oil changes ($105 value)

Groupon customers will also receive 10% off any additional service over $100 (excluding oil changes)

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 90 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as gift. Valid only for option purchased. All goods or services must be used by the same person. Appointment required. Valid for up to 5 quarts of oil. Must activate by expiration date on your voucher, remaining oil changes expire 9 months from activation date. Not valid with other offers or promotions. Extra fee for synthetic oil. May be repurchased every 30 days. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Reliable Auto Services


By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.