30 Things Your Car Mechanic Won’t Tell You
Real mechanics give you the inside scoop on the tricks of the trade.
Watch out for scare tactics
Admonitions like "I wouldn't drive this another mile" should be viewed with suspicion. You should also watch out for these other 11 trusted tips to avoid a home improvement scam.
Check for ASE, National Institute for Automotive Service Excellence, or AAA (America Automobile Association) certification, as well as a state license. Reputable shops are proud to display them.
These are the things you should NEVER do to your car:
Ask, ask, ask
Ask for recommendations, years in business, warranties offered, licenses, and the type of equipment used. Look for a clean garage. A floor cluttered with empty oil cans, worn tires, and dirty rags is a red flag. .
Read before you sign
Never sign a blank authorization form. Always get a signed work order with a specific estimate for each job and warranties that apply.
You get what you pay for
Synthetic motor oils may cost more, but you'll get a lot more miles between changes. Here are some smart ways to save money on gas.
When you go for a second opinion...
...don't tell the mechanic what the first diagnosis and price were.
Coolant flushes and power steering flushes are very common gimmicks at quick lubes. Check your owner's manual; many cars have fluid that is designed to go 100,000 miles. And cleaning fuel injectors is a waste of time and money. There are additives on the market that do a great job. Watch out for these other ways you're wasting money on your car.
Give me a brake
Always ask for OE (original equipment) brake pads or at least equivalent material. A $49.95 brake job will usually get you the worst friction material you can buy—it's the difference between stopping short and causing a pileup on the way to work. While you're on the road, you should keep these things traffic cops won't tell you in mind.
Ask about your new tire's "build date." If you're getting an unusually good deal, you might be receiving three-year-old treads, which is especially risky for snow tires. These are the best snow tires.
Consult your dealer...
...before you have work done on a catalytic converter or emissions parts. Some of these items carry a very long warranty, and free replacement is often required by law. Here are some car-buying secrets your dealer won't tell you.
Light on your dash
It's not OK for your "check engine" light to stay on all the time. It's probably not "a loose gas cap." Here are the things you should NEVER do while driving.
Always ask for your old parts back
This way you’ll know they’ve been changed, and you or a friend can tell if they’re worn. Watch out for these things you should never, ever do to your car.
Be careful with "road hazard" warranties on tires. The shops may give you a free tire here and there, but eventually, they will soak you with unnecessary alignments or suspension replacements.
Have your car test-driven. A good test-drive is just as important as a regular service—it might mean the difference between simply needing brake pads and having a complete rotor replacement. Make sure you know about these cars that are plummeting in value.
Find expert mechanics
Good mechanics, like good customers, are hard to find—communication is key. A good car mechanic will explain repair phases and give you choices.
Be wary of certified pre-owned cars
Usually in this business, the only thing that’s certified is that someone owned the car before you. Very little ever gets done on these types of cars. Here are red flags you’re about to fall for a terrible car deal.
When to go
Go early in the workweek. Don’t bring your car in on Friday afternoon, because the mechanics might rush the job to get out for the weekend.
Don't make a rookie mistake
Beware of a car mechanic who shows you a transmission pan with metal particles in it and recommends a major job. The shavings are usually a sign of normal wear.
Familiarize yourself with tire tread
Before buying new tires, know what your state’s tread specifications are. Then have the mechanic measure the old tread with a gauge. This is how long you can drive on a spare tire.
Too good to be true
Beware of false promises. Watch out for ads promising $100 brake jobs. No mechanic can make money on that. Watch out for these other scams masquerading as deals.
Weed out scams. Transmission flushes are one of the biggest scams going. Manufacturers don’t recommend them, and your car almost never needs one. Here are some of the most common car repair scams.
Onomatopoeia is encouraged
If your car is making weird noises, it's better to swallow your pride and try to make the noise (no matter how goofy you think you sound) than attempt to describe it. You may think your description of the sound makes perfect sense, but the mechanic hasn't heard it before like you have. “I'd rather hear a funny noise come out of you than waste time trying to figure out what you mean by ‘buzzing, but it's like squishy if that makes sense,’" says Ryan, a Winnipeg car mechanic. Chances are, it won't make sense.
Things get overlooked
If the mechanic doing maintenance on your car is on a time constraint, they may not get to every little thing. Smaller tasks might get neglected or forgotten, such as "lubricating door hinges or latching mechanisms." A Colorado car mechanic warns that, if tasks like these don't get completed, "It doesn’t affect performance at that moment, but it can over time.” You might want to ask to confirm that even the smallest tasks have been seen to before you drive away. Check out this handy guide to little car repairs you can make without going to the shop.
Dealerships vs. private shops
You may be inclined to support a small local shop rather than a massive dealer, but keep in mind that dealers often have access to resources that the small shops don't. Charles, a car mechanic at a Volkswagen dealer, says, "There are a lot of resources we have access to that an independent place wouldn’t...A small shop isn’t going to spend $15,000 a year [for that data]." While local shops are great, just be aware that some model-specific information may not be available to them. Next, learn the maintenance tricks everyone needs to know to extend the life of their car.
Sources: Gary Montesi, owner, Montesi Volkswagen, North Haven, Connecticut; Domenic DiSiena, manager, Bedford (New York) Shell; Bob Sikorsky, automotive writer, Tucson, Arizona; anonymous mechanics in Minnesota and New York; Mental Floss