One or Two Oil Changes at Day Heights Auto Services (Up to 37% Off). Six Options Available.

Day Heights Auto Services Day Heights

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Up to 37% Off

Customer Reviews

26 Ratings

They were all very nice and easy to deal with. Very knowledgeable too!
Charlie S. · December 7, 2017
Great frienldly place!!!
Vladimir B. · November 28, 2017
They never try to sell you something you don't need, and they let you know in advance how much something is actually going to cost.
Renee S. · June 13, 2017

What You'll Get


Choose from Six Options

  • $19 for one conventional oil change ($24.95 value)
  • $35 for two conventional oil changes ($49.90 value)
  • $23 for one synthetic-blend oil change ($29.95 value)
  • $45 for two synthetic-blend oil changes ($59.90 value)
  • $39 for one full-synthetic oil change ($59.95 value)
  • $75 for two full-synthetic oil change ($119.90 value)

Motor-Oil Viscosity: A Slippery Subject

The oil viscosity your car needs is usually determined by your car’s manufacturer, but is there ever a reason to switch? Groupon sought out the answer.

Whenever a vehicle is in motion, engine oil has a lot of work to do: reducing friction between moving parts, keeping the engine from overheating, preventing components from prematurely wearing down. But there are many things that can keep oil from staying on top of its workload, and that’s where viscosity comes into play. Factors such as varying starting and running temperatures, an aging car, or heavy loads on board can all affect how motor oil performs. Fortunately, auto manufacturers specify what viscosity level is best for their vehicles, so most drivers never have to spend much time pondering this subject. But for those who are interested or who have to make elevator conversation with a talking car, there are a few basic principles to consider.

Like most liquids, when oil is cooler it’s more viscous (that is, slower-flowing), and when it’s warmer it’s less viscous. Higher-viscosity oils are most appropriate for cars that operate at higher temperatures or carry heavier loads. Lower-viscosity oils work better at lower temperatures since they don’t need to be heated to flow, but they generally offer less protection against wear.

There was a time when people who live in four-season climates would use one oil with a higher viscosity during the warm months and another during the cold months, but multi-grade motor oils solve that problem by working efficiently in both conditions. When you see a viscosity grade on a bottle of multi-grade motor oil—say, 10W-30—there are two numbers to consider. The number preceding the W stands for “winter” or “woolen-underwear season,” which reflects how the oil flows when starting an engine on a cold day. The number after the hyphen is the viscosity at 210°F, the standard temperature of an operating engine. (On both sides of the hyphen, a higher number means a higher viscosity.) What makes this type of oil so flexible? It’s the polymers—particles that expand as the oil heats up and slow down the rate at which the oil thins as it gets hotter.

The Fine Print


Promotional value expires 120 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. All goods or services must be used by the same person. Appointment required. All goods or services must be used by the same person. Disposal fee & shop fee not included. Additional fee for over 5 quarts and premium oil filters. Not valid with any other offers. May be repurchased every 30 days. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Day Heights 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.