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New ownership since 2016! 520-351-2061

NAPA

HELPFUL INFO

Are You Ready For The Road?

An average of 13,000 Americans are killed between Memorial Day weekend and Labor Day, some as a result of unperformed vehicle maintenance, according to the National Highway Traffic Safety Administration. Each year, neglected maintenance leads to more than 2,600 deaths, nearly 100,000 disabling injuries and more than $2 billion in lost wages, medical expenses and property damage.

Most mechanical failures can be traced to neglected maintenance. For example, the U. S. Department of Transportation reports the leading cause of mechanical breakdown on our nation's highways is overheating, a condition that is easily avoidable. Other deficiencies that are simple to detect include low antifreeze/coolant, worn or loose drive belts and defective cooling system hoses.

Checking tire pressure and inflating a tire costs nothing, yet an average of 21 percent of cars inspected in check lanes during National Car Care Month have under inflated tires. This can lead to a blowout and a serious accident.

Fuel Saving Tips

Condition Effect MPG Penalty up to
Under inflated tires Increase rolling resistance 1-2mpg
Dirty air filter Causes excessively rich fuel/air mixture 2.0mpg
Worn spark plugs Cause inefficient combustion, wasted fuel 2.0mpg
Worn O2 sensor Unable to detect and adjust air/fuel mixture 3mpg
Dirty or substandard engine oil Increases internal engine friction 0.4mpg
Loose gas cap Allows fuel to evaporate 2.0mpg
Potential loss in fuel economy if all of the above were neglected
11.4mpg

The Car Care Council offers these fuel-saving tips:

  1. Vehicle gas caps -- About 17 percent of the vehicles on the roads have gas caps that are either damaged, loose or are missing altogether, causing 147 million gallons of gas to vaporize every year.
  2. Under inflated tires -- When tires aren't inflated properly it's like driving with the parking brake on and can cost a mile or two per gallon.
  3. Worn spark plugs -- A vehicle can have either four, six or eight spark plugs, which fire as many as 3 million times every 1,000 miles, resulting in a lot of heat and electrical and chemical erosion. A dirty spark plug causes misfiring, which wastes fuel. Spark plugs need to be replaced as recommended by the manufacturer.
  4. Dirty air filters -- An air filter that is clogged with dirt, dust and bugs chokes off the air and creates a "rich" mixture -- too much gas being burned for the amount of air, which wastes gas and causes the engine to lose power. Replacing a clogged air filter can improve gas mileage by as much as 10 percent, saving about 20 cents a gallon.

Fuel-saving driving tips include:

  • Don't be an aggressive driver -- Aggressive driving can lower gas mileage by as much as 33 percent on the highway and 5 percent on city streets, which results in 10 to 66 cents per gallon.
  • Avoid excessive idling -- Sitting idle gets zero miles per gallon. Letting the vehicle warm up for one to two minutes is sufficient.
  • Observe the speed limit -- Gas mileage decreases rapidly at speeds above 60 mph. Each mpg driven over 60 will result in an additional 10 cents per gallon. To maintain a constant speed on the highway, cruise control is recommended.

WIPERS - In the 2001National Car Care Month vehicle check lanes, 21percent of participants had wipers that smeared, streaked or chattered across their windshields. Although climates vary, wipers generally need replacing every six months. An easy reminder is to change wiper blades in the spring and fall when you change your clock. Be sure the windshield washers are working properly, too, and keep the reservoir filled with solvent.

LIGHTING - Another important pre-trip check should be exterior and interior lighting. Vehicle check lanes revealed an overall failure rate of over 25 percent in the lighting category. The Car Care Council reminds motorists to check their lights monthly. Other suggestions from the Council include turning on headlights both day and night. This helps define your car's position on the road, and its distance from other drivers. When your vehicle's lighting is defective, other motorists may not get the message that you intend to stop or turn. The end result could be disastrous.

10 Minute Pre-Trip Checkup Can Pay Off

Car Care Council offers three suggestions for a traveler's 10-minute pre-trip checklist:

  • Check all fluids. There are several fluids, in addition to antifreeze, that require attention, including engine oil, power steering, brake and transmission fluids and windshield washer solvent and antifreeze/coolant.
  • Check hoses and belts. A belt that fails can affect the electrical system, air conditioning and power steering, as well as the cooling system. Cooling system hoses may be deteriorating from within, so old hoses and clamps in marginal condition might need to be replaced.
  • Check the tires. Check tire inflation and inspect the tread for uneven wear, indicating the need for wheel alignment. Also look for bulges and bald spots.

"While a last minute checkup is better than no checkup, motorists should plan ahead to allow time to perform necessary maintenance themselves or at the local service facility. A properly maintained vehicle is safer and more dependable and will even save a few dollars at the gas pumps," said the Car Care Council's Executive Director, Rich White.

Not only can a pre-trip inspection help reduce chances of costly and possibly dangerous road trouble, it also provides an opportunity to have repairs made at home, with one's own technician who knows the vehicle. Especially important, it provides peace of mind. While no inspection can guarantee a car's performance, it's comforting to know proper precautions were taken.



ASSOCIATIONS

  • ASE (Automotive Service Excellence)
  • NAPA
  • BBB Reviews
  • Car Care Aware

Testimonials

  • We found our former auto repair shop closed only to "randomly" pull into Mark Knaak's, Covenant Automotive, LLC today. While it makes sense to get an appointment, they performed mechanical service on two of our cars without hesitation. They were pleasant to work with, asked appropriate questions, provided information and excellent service second to none. Mark is a VERY experienced mechanic and able to work on almost ANY make or model. He specializes in "high end" luxury vehicles. Raise your prices, Mark! You deserve EVERY penny. THANK YOU. We'll be back!
    -Thomas & Gloria W.

  • Mark was honest, kind, worked very efficiently, and made my experience at Covenant Automotive not only enjoyable but heaven sent. I will certainly be taking my Nissan to him and his team as long as they are in business in Tucson. Thank you Mark for your kind heart and excellent service!
    -Hallah K.

  • Very impressed! I just dropped in before 3pm on 2/19/2018 with my 2001 F150 Lariat, thinking I might need a fuel filter replacement..."Service Engine Soon" light was lit. When they checked, it was determined the truck was misfiring on #8. I thought I'd have to arrange another day to bring it in for the estimated 3 hour job; Mark assured me that he could get two guys to work on it right away, and if they had to go a little past 5, they'd do whatever was needed to get me going. Well, a whole set of plugs and a new coil, and they finished at 4:50! Amazing work!
    -Pam D.

  • My stepdad brings in our cars to Mark and he does a fabulous job taking care of them! I took my Nissan Maxima in for an oil change and to get my splash guard nailed back into place. They took excellent care of my car and I am very impressed with them! Will be back with my husband's car for an oil change, and will keep coming back! The oil change is a great price for the service that you receive!
    -Renee F.

  • Very honest work done in timely manner prices very good
    -Sean H.

  • Mark has worked on my Mercedes E350...and now a doge journey (only an oil change and inspection before cross country trip.) The service and above all, honesty you'll get here is just the best. We're moving east and will miss them!
    -Phyllis G.

  • Very honest and fair! My stepdad has been bringing the cars here for years and they are very fast and effeciant. I will be coming back again in the future for any work that needs to be done to my car.
    -Renee

  • Covenant has repaired my BMW multiple times and are amazing to work with. I always get a fair price and they are extremely responsive. They will continue to get my families business.
    -Elise N.

  • My 2000 GMC 1500 SLT 2WD with 147K original miles had developed a popping sound in the frt left side while I was visiting in Tucson, and being a bit of a motorhead from years past, I had a good idea as to what it was. I took it into a well known national chain garage to do an inspection, not only did they charge me $20 to do the inspection, they quoted me well over $2300 to complete the work. Then I did a little web search and found Covenant Automotive which is backed by NAPA so I called made an appt. I took it in as scheduled and they got right on it, doing the inspection and working up a quote, that is when Mark told me that he would quote the job in the most economical manner, which meant replacing the entire upper arm rather than replacing the bushings and the ball joint separately on both sides, as well as the tie rods on both sides. He quoted me $1017 and change which also included an alignment. They took me back to the RV Park where I was staying and finish! ed the work as promised, on time and on budget! I have driven the truck now for a few weeks, took a 500 mile road trip and I am completely satisfied with the quality level of their work. Mark and his team are not just mechanics, they are motorheads themselves and it is in their blood, they will work on your car or truck as if it was their own and they take great pride in their commitment to their customers My thanks to the team at Covenant Automotive, and Happy New Year!
    -Marc G.

  • All I can say is I wish you were here in Amarillo where I just moved. I've never had such good service from anyone, and I am a real skeptic when it comes to mechanics. You and your crew are the best. Thank you!
    -Bonnie Lundy