6 Causes of Poor Gas Mileage

6 Causes of Poor Gas Mileage

Here are some of the most common reasons you’ll suddenly start getting poor gas mileage. The odds are the cause is one of these, but if you rule these out you’ll need to get some help diagnosing the problem. Hopefully, it is one of these easy things to fix and you’ll be getting that great gas mileage again.

Causes of Poor Gas Mileage

There are a whole bunch of problems that can cause your great gas mileage to drop. Here is where to start in diagnosing the problem and getting it fixed.

Missing Gas Cap

You’d think it wouldn’t matter if your gas cap was on or not, but it does. It can have a dramatic effect on mileage. So, be sure it is on and screwed down tight.

Incorrect Tire Pressure

Make sure your tire pressure is correct. It should be listed in the doorjamb of your car. But you can look it up on the tire manufacturer’s website if you think the information is incorrect in the door.

Low Oil Level

Check your oil and make sure the level is where it should be. If it’s low then you might have a leak. Have that checked out right away.

Dirty Oxygen Sensor

Have this checked at your next oil change or sooner

Fuel Pump Issues

You probably already thought of this one but check it. If it looks to be leaking or smells of gas, have it checked out right away. You don’t need a fire under the hood.

Your Nephew

Your sister’s kid has been racing the car. Seriously, is someone else with poor driving habits driving your car lately? Jackrabbit starts and speeding uses a lot of gas. If it’s you, still blame the nephew.

Get it Checked Out

If you’ve checked all the easy stuff you can control and you still haven’t located the cause of your poor gas mileage, then make an appointment with A1 Performance Auto Repair. We’ll find the problem and get it fixed.

Where Can I Buy Classic Cars?

Where Can I Buy Classic Cars?

The oldies are the best cars ever. They were stylish, expertly crafted out of real wood and steel and drove like a boat floating on water. At A1 Performance Auto Repair, we love the classics, too, and love to work on them. So, “Where can I buy classic cars?” you ask? There is a place close-by in San Jose.

Where Can I Buy Classic Cars?

It is easy to think only SoCal has options for a good place to buy classic cars, but here in the Silicon Valley there’s a place. So, don’t worry, you won’t have to become Jay Leno’s best buddy in order to snag a great classic car.

American Motors Custom & Classics specializes in selling restored classic cars. They’ve got your muscle cars, your Studebakers and Edsels. They are fully restored and some you can even customize.

This company sells cars and trucks worldwide. So, if you’re looking to sell the classic you already own, they’d likely be a good choice to help you sell it.

It’s always best to purchase from an expert. You might think you’ve scored big on an old car that a private seller has, only to find out it has parts from unrelated vehicles from different time periods and fake parts. It is very easy to trick a person who doesn’t look at these cars all day, every day. If you like the car, there is nothing wrong with buying a car that was inspired by one of the great models. But you sure don’t want to pay the price of an collector’s car, if it isn’t an original.

A1 Performance Auto Repair

From time to time we might know of a classic car for sale, as many of our customers drive restored cars. When you come in for maintenance or repair, ask us if we know of anyone who is selling. We’re happy to help you find where you can buy classic cars, when we know of someone who is selling.

Signs of a Bad Water Pump in Your Car or Truck

Signs of a Bad Water Pump in Your Car or Truck

These 4 signs of a bad water pump will help you narrow down what the problem is with your car or truck. While you’re trying to figure out the real culprit, your water pump is getting worse. It is best to get it replaced immediately, so that you don’t have to suffer through replacing more parts after the water pump goes out. These specific signs will help you know whether it is the water pump or something else.

Signs of a Bad Water Pump

For a little part, it has quite an important job to do. This is the part that gets that coolant moving around to keep the radiator in good shape and the engine cooled. If your water pump is going out, you need to replace it immediately. These signs below should give you a good idea if you should replace it now or start looking at a different part as the cause.

The Puddle

The #1 indicator of a water pump failing is the puddle of coolant under the front of the car. The color will be either orange or green – matching the color of the coolant you use.

Engine Keeps Overheating

When the water pump fails, the engine will overheat. Some cars will give you a dummy light to let you know coolant is low. Don’t drive the car if it is overheating.

Gunky Build-up

Sometimes the failure takes time. During that time period of the pump slowly dying, it’ll leak out a little bit of coolant. This dries on the water pump making it look rather gunky and messy from the dried coolant.

Steam from Under the Hood

If you see what appears to be steam coming out from under the hood, pull over. Do not open the hood. Call your roadside service. This means the engine has overheated. It might or might not be from the water pump.

A1 Performance Auto Repair

If you’re within 3 miles of our shop in Sunnyvale, we can tow your car in for free. (Farther will have a charge.) We’ll be happy to accurately diagnose the problem and fix it for you promptly. Give us a call.

What Are the Best Windshield Wipers?

What Are the Best Windshield Wipers?

Known far and wide, Bosch are the best windshield wipers for any car or truck. When the drought is on, you won’t need your wipers much. But when it does start raining, you had better be prepared with some mighty fine wiper blades. Bosch appears to be the most popular choice, as about 100 people a month are searching the Internet for them in Sunnyvale, CA, alone! But, why are these the best wipers on the planet?

What Makes Bosch Windshield Wipers the Best

Bosch puts a lot of technology into their wiper blades, from graphite coating on a patented rubber blend to precision tension springs and a spoiler for increased aerodynamics on the Insight Wiper Blades.

Bosch has a lot of choices in blades to meet every picky customer’s need. They are real big on all weather performance, so when you get a surprise bunch of ice on your windshield overnight in the Silicon Valley, this is going to be a reliable choice of blade.

How Often to Change Out Wipers?

Wipers are usually recommended to be replaced every 6 months, however, the Bay Area doesn’t have a lot of weather, at least not like other areas of the country. Once per year here should keep you in good condition unless there is a lot of extreme temperatures or exposure to fires this summer.

When you’re hearing signs of wear, then replace them. They’ll start an annoying squeaky, chattering noise and leaving a lot of streaks. Of course, if you see a piece of rubber flopping around on your windshield when the wipers are in use, definitely replace them right away.

Replace all of your windshield wipers at the same time. You want great vision when it rains or snows. It is not time to save money by replacing only the driver’s side. Do them all. If you want the best windshield wipers, the votes are for the Bosch. Ask if we have them in stock when you get your next oil change.

Quick Tire Check Can Save Your Tires

Quick Tire Check Can Save Your Tires

Tires are something many vehicle owners don’t think about until one blows out. But tires are an expensive repair, especially when the ideal situation is to replace them all at once. So, here is a quick series of checks to help you stay ahead of any problem that indicates upcoming tire problems.


Whenever you’ve run out of TV shows to watch, go take a look at your tires for unusual things going on out there. By catching something early, you can save yourself a major hassle or even the tire.

Over Inflation

Measure your inflation with a tire pressure gauge. If you don’t have one, buy one. Overinflated tires will bulge, causing missing tread down the middle of the tire.

Under Inflation

When there isn’t enough pressure in the tire the outsides of the tread have excessive wear and look bald. Always inflate to the number for tire pressure that listed on the sticker in the driver’s door jamb.

One Edge Tread Wear

If the wheels are out of alignment, only one side of the tire will have excessive tread wear.


Cupping is an erratic tire tread wear problem and it could mean the tire is out of balance or there are issues with shocks or suspension.

Raised Tread

When the tire’s tread is raised in spots or the sidewall is raised, there is a problem with the belts in the tire. It is going to need to be replaced right away.

General Tire Maintenance

To extend the life of your tires, have them rotated every other oil change, or every 7,000 miles or so. Always keep your tires in good balance, promptly getting them balanced when there is any sign of trouble. Anytime you notice your car pulling to one side, get the wheel alignment checked and repaired if necessary.

Anytime you need help with your tires, let us know. A1 Performance Auto Repair can check them and do the necessary alignment and balancing maintenance.

How to Know if Auto Parts Are Counterfeit

How to Know if Auto Parts Are Counterfeit

Many people these days will buy auto parts on the Internet, so they can save a little cash. There’s nothing wrong with that, except that the parts they are getting such a great deal on are likely counterfeit. Counterfeit auto parts, like counterfeit money, isn’t a good thing. So, here are some tips that will help in identifying fake parts from real ones.

Counterfeit Auto Parts

Auto parts that are fake are not something you want to put on your car. It isn’t like a generic brand that makes a good part that doesn’t have the big manufacturer’s brand. Counterfeit parts are parts that are cranked out quickly in China without any care for quality, functionality or safety.

Sure, the price is unbelievably low on counterfeit parts, but that doesn’t make them a great deal. They can cost you your engine or even your life. They will definitely cost you your money, because you will have to buy legitimate parts soon in order to replace the fake one, in addition to anything else those parts ruined.

Here are things to look for to spot the fakes, but keep in mind, the photo they’ll have on a website is likely fake, too.

Cheap Packaging

If it is real, it’ll be protected in nice packaging.

Missing Part Number

Real packaging will have the part number printed on the box, not a sticker.


Just like all counterfeits, they don’t pay proofreaders to make corrections.

Instructions That Are Wrong

If the directions on installing, or other packaging materials, are poor translations and don’t make sense, it’s fake.

It Just Looks Off

Compare the same part that you purchased at your mechanic or a local auto parts store to check against a potential fake. The differences become quite obvious in the details.

Use Reputable Dealers

A1 Performance Auto Repair uses genuine parts that are safe, work properly and you can trust. Don’t waste money buying fakes on the Internet or at swap meets. If the price sounds too good to be true, it is.

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