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Top Rated Merchant

Castrol Premium Lube Express is a top merchant due to its average rating of 4.5 stars or higher based on a minimum of 400 ratings.

Castrol Premium Lube Express

47369 Five Mile Road, Plymouth

Conventional, Synthetic-Blend, or Full Synthetic Oil Change at Castrol Premium Lube Express (Up to 54% Off)

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Help Castrol Premium Lube Express

Support this business with a RISK-FREE purchase. If you're unable to use your local Groupon, you can trade it in for use toward any of our other great local businesses - until you either view the voucher or it expires.

Highlights

Certified technician drains old oil and replaces it with new, keeping cars running at optimal performance

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
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R
ReneeTOP REVIEWER
9 ratings6 reviews
June 22, 2020
Excellent service. Very professional and friendly technicians.
G
Geoff
4 ratings3 reviews
June 19, 2020
Quick, efficient, and answered all my questions about my need to change out my other fluids.
M
MattTOP REVIEWER
26 ratings7 reviews
June 6, 2020
Good service. Will do business with again.
B
Brian
1 ratings1 reviews
May 23, 2020
Quick and friendly service!!
B
Bill
2 ratings1 reviews
March 11, 2020
Great service friendly staff!
B
BlaiseTOP REVIEWER
14 ratings9 reviews
March 2, 2020
Fast, efficient service. I did get a free car wash- if they don’t mention one to you, just check your receipt. It should say “Car Wash: Yes” towards the bottom. I just had to show my receipt at the car wash (which is attached next door to the oil change place) and I was good to go!
J
JeralynTOP REVIEWER
9 ratings7 reviews
February 20, 2020
Great service plus free car wash!
S
Sharon
1 ratings1 reviews
February 10, 2020
Fantastic!! Super friendly and thorough! Car Wash was nice too! :) Would definitely come back!
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What You'll Get

Choice of:

  • Conventional Oil Change
  • Synthetic-Blend Oil Change
  • Full Synthetic Oil Change

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. Valid for up to 5 quarts of motor oil and spin-on oil filter. Additional fees apply for extra quarts of oil and cartridge oil filters. Effective only for 0W-20, 5W-20, 5W-30, and 10W-30 weight motor oil. Not valid with any other same service offers or promotions. Does not include sales tax. Limit 1 per person, may buy 1 additional as gift(s). May be repurchased every 120 days. Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Castrol Premium Lube Express

Auto Repair & Maintenance, Oil Change