One, Two, or Three Hours of Assisted Repair at U Do It Auto Repair (Up to 57% Off0

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Up to 57% Off

Customer Reviews

2 Ratings

This is a great place. Glad I found it because I like to do my own work if possible. The guys are great and very helpful. Will definitely be going back.
Brad B. · July 8, 2017

What You'll Get


Choice of:

  • One Hour of Assisted Repair with Technician Assistant, Tools, Vehicle Lift
  • Two Hours of Assisted Repair with Technician Assistant, Tools, Vehicle Lift
  • Three Hours of Assisted Repair with Technician Assistant, Tools, Vehicle Lift

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 120 days after purchase. Amount paid never expires. May be repurchased every 180 days. Appointment required, same day appointments accepted. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). 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. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About U Do It Auto Repair


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.