AUTONET TV

Coolant Service at Gilmore's Auto Service

Walnut Creek residents' vehicles have to operate in a wide range of CA temperatures which requires the engine coolant to be able to perform 'no matter what.' Think for a moment about the environment where the coolant does its thing. Very hot, high pressure, corrosive...

And all the while, it has to protect the components of the cooling system from corrosion. These components are made from steel and aluminum, plastics and rubber. The coolant has to be formulated to protect against corrosion for all of these different materials. That's why vehicle manufacturer’s recommend different types of anti-freeze for our Walnut Creek, CA, vehicles.

There are several different 'families' of anti-freeze available to us here in Walnut Creek. Your owner's manual will tell you what kind you should use. Of course, the automotive professionals at Gilmore's Auto Service will know the right kind for your vehicle.

It's important to stay on top of this because coolant system failure is the most common mechanical problem people have here in Walnut Creek, CA. Regular service needs to be done at Gilmore's Auto Service to avoid failures and also to keep your warranty in place.

While the specifics of the service required may vary from vehicle to vehicle, your friendly and knowledgeable Gilmore's Auto Service service advisor will know what to do. You'll be advised to replace the coolant at specified intervals.

Some recommend periodic coolant system flushes. A flush adds a cleaning step to the fluid replacement process. Again, check to see what your owner’s manual recommends.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net

The Truth about Tire Pressure (Tire Inflation)

Most light vehicles (under 10,000 pounds/4,500 kg) in North America sold from 2008 model year on have a feature that many people are confused about.  It's the tire pressure monitoring system (TPMS).  You may have some experience with it yourself if you own a newer vehicle.  Vehicles with TPMS have sensors in each tire that are supposed to warn the driver when tire pressure gets dangerously low.  That's important because tires that are significantly under-inflated can cause very serious accidents.

Unfortunately, many drivers think the TPMS does all the work keeping track of tire pressure. To them, as long as the warning light or gauge isn’t giving a warning, the tires must have the proper amount of air pressure in them.  That's not the case.

Tire pressure monitoring systems aren't all created equal.   Some give you a digital readout of the pressures in each individual tire.  But many simply have a warning light that looks like the cross section of a tire with an exclamation point in the middle.  If you don't know what it is, it's because it's not instantly recognizable as a tire.  In fact, one company that makes TPMS, Schrader Performance Sensors, surveyed drivers.  Their study showed that more than 40 percent of drivers didn't know that that warning light was. 

One out of 5 of the drivers who did know what the light was only looked at their tires after the light came on to see if they could see any that needed air; they never checked them with a tire gauge or had someone else do it.  Ten percent of them didn't do anything when the light came on.

In most vehicles with TPMS, the warning comes on only when the tires are more than 25% underinflated.  The American Automobile Association says that's under the pressure you need for safe vehicle operation.

The bottom line is once a month you should make sure your tires are inflated to the manufacturer's recommendations.  That means each tire should be measured with an accurate, external tire gauge.  To be confident you are getting a correct reading, take your vehicle to a reputable service facility where their equipment is calibrated and they know what they're doing.

Severely underinflated tires can contribute to an accident that kills or severely injures people.  The idea behind TPMS is well intended, but the system was never meant to replace regular inflation measurements and maintenance.  Periodically have your tires checked for proper inflation.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net

A Squirrely Problem (Animals Nesting in Engine)

If you park your vehicle outside, you are exposing it to all sorts of critters that would love to use it for nesting, food storage and shelter.  There are plenty of pictures online of people who've discovered there was more than an engine under the hood.  In one case, the driver of an SUV started to smell a slight burning odor when she was driving.  Turned out to be 200 walnuts and a lot of grass had been stored there by some industrious squirrels preparing for the upcoming cold weather. 

The SUV owners had their vehicle inspected not long before this happened, but it doesn't take some animals long to set up house in what they think is the ideal spot to make their winter home.   Obviously, that can create problems.  Squirrels, mice, rats and other small animals can chew through hoses and wires.  Plus what they store as food and nesting material may prevent engine parts from moving the way they are supposed to.  Imagine a radiator fan that won't turn because it's laden with heavy walnuts.  Or the fire hazard created by flammable brush on a hot manifold.

Probably the best solution is to store your vehicle inside a rodent-tight building, but that's no guarantee.  Unfortunately it doesn't take a very big hole or gap for small mice or other creatures to get in.  Some careful sealing with materials like cement or steel wool can reduce rodent access effectively, but they're always looking for access so you can't let down your guard.

If you're not able to store your vehicle inside, you may try spraying lavender or mint essence around the engine or in the wheel wells.  Rodents don't seem to like those odors very much.  If you drive your vehicle every day, you're less likely to have unwanted residents than if you leave it sit for days.  In either case, if you have experienced animal problems in the past, open your hood and inspect your engine frequently. 

Check with your service adviser for recommendations on how to keep animals out of your vehicle.  You're not the only one whose vehicle looks like the perfect winter apartment to some critters.  Preventing animals from getting to your vehicle is worth some time and expense because damage from gnawing teeth can be very costly and difficult to repair.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net

Coolant/Antifreeze Service at Gilmore's Auto Service

Anyone who drives a car in Walnut Creek knows that engines get hot when they run. But did you know that engines need to be cooled to keep running? Heat inside an engine can cause the metal parts to expand, which can seize up an engine and make it stop running. It can even ruin the entire engine! Good vehicle care requires keeping its cooling system in good condition.

A vehicle's cooling system circulates water and antifreeze (coolant) through the engine where it absorbs heat. It then flows to the radiator where the water and antifreeze are cooled by the air that flows over the radiator. Then it circulates back into the vehicle's engine to absorb more heat.

Why shouldn't Walnut Creek auto owners just use water? Because water boils at temperatures that are often reached inside of an engine. Steam won't cool your vehicle engine and is hard to contain within the cooling system. The antifreeze keeps the water from boiling.

So why do we call it antifreeze? Shouldn't it be antiboil? Truth is, the antifreeze performs another critical task. Water freezes in cold CA weather. That would spell disaster for your vehicle's engine. So antifreeze also keeps the water in your cooling system from freezing in all but the most extreme cold. Pretty neat stuff!

Taking care of your cooling system is part of good preventive maintenance for your vehicle. Walnut Creek area drivers should check coolant level often and regularly inspect your cooling system for leaks.

That is just good auto advice. Your vehicle's manufacturer has maintenance requirements for draining and replacing engine coolant. Consult your owner's manual or ask your friendly and knowledgeable Gilmore's Auto Service service advisor for these recommendations, as they vary widely among vehicles.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net