Synthetic Blend Oil Changes and Tire Rotations at SJM Auto Werks (Up to 74% Off). Two Options Available.

SJM Auto Werks

Up to 74% Off
20+ bought
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What You'll Get

Choice of:

  • One punch pass good for four full-service synthetic blend oil change visits
  • Two punch passes, each good for four full-service synthetic blend oil change visits

Each visit includes a full inspection and oil-fluid top-off (up to one pint). Every other visit includes a tire rotation.

Internal-Combustion Engines: The Muscle in a Muscle Car

An oil change keeps all the parts of an engine moving smoothly. Peek under the hood with us to see why they need constant lubrication.

Beneath the guttural rumble of a car engine is an incredible amount of force. As soon as you step on the gas, fuel vapor mixed with air begins exploding, driving metal pistons in and out of chambers where temperatures regularly hit 3,000 degrees Fahrenheit. This enclosed system of pistons propelled by direct contact with burning gas defines an internal-combustion engine. (There is such a thing as an external-combustion engine, in which the heat is produced from outside the cylinder—as in the old-fashioned steam engines that people in the past used to make trains look extra friendly, for instance.)

The internal-combustion engine under the hood of the typical car completes its cycle in four stages, or strokes. First, fuel and air fill the cylinder as the piston drops. As the piston returns to the top of the cylinder, it (2) compresses the fuel mixture before (3) a spark from the spark plug ignites the mixture, the force of the explosion pressing the piston back down. Finally, the cylinder rises once more to push out the exhaust. As the crankshaft at the base of the pistons is kept turning by this constant cycle, it drives the rotation of the transmission, which applies all that power in a controlled fashion to the axles and, finally, sends you speeding down the road.

The Fine Print

Promotional value expires 180 days after purchase. Amount paid never expires. Valid only for option purchased. Must redeem via email to receive hard-copy of oil change card; vouchers not redeemable at location. Ships from USPS within 5 days of purchase. Limit 1 per person, may buy 5 additional as gifts. Limit 1 per vehicle. Limit 1 per visit. Must activate by the expiration date on voucher. Card expires 18 months after first oil change. Valid for up to five quarts of oil and standard filter.Valid for all vehicles weighing up to 1 ton, including commercial fleets. Additional charge for synthetic oil and premium filters. Shop supplies, disposal fee, and tax not included, paid at time of service. For questions, call (815) 814-4401. May be repurchased every 30 days. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About SJM Auto Werks

SJM Auto Werks

Auto Repair & Maintenance, Oil Change
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.