AUTONET TV

The Right Oil for the Season (Engine Oil Viscosity)

As the temperatures plunge, certain types of engine oil may not flow as easily as they did when it was warmer.  Makes sense, doesn't it? Just like molasses gets thicker as the temperature goes down, engine oil does the same thing. So, maybe you're wondering if you have to change your oil as the seasons change so it's just the right thickness to lubricate your engine parts. 

How well engine oil flows is called its viscosity. There are different types of oil—some that have just one viscosity and others called "multigrade" oils.  Here's the difference.

A single viscosity oil will flow better when it's hot but not as well when it's cold.  A multigrade oil is engineered so that its flow properties at cold temperatures are different than they are at warm temperatures.  In other words, a multigrade oil can start out in colder temperatures acting like a thinner oil and then behave like a thicker oil when it's warm.  That's a pretty cool trick and it's why multigrade engine oil is used in nearly all vehicles.  Your vehicle's manufacturer has the correct viscosity of oil for your particular model included in the owner's manual.

Another choice you have to make when it comes to engine oil is whether you use conventional oil, synthetic oil or a blend of the two.  Synthetic oils have some advantages over conventional, such as resisting breakdown better and withstanding higher temperatures.

Check with your service advisor to see which viscosity and type of oil is recommended for your vehicle.  It's important that in cold weather, the oil flows through your engine at the right thickness so that parts are being properly lubricated.  That will make sure you'll get good fuel economy and performance, no matter what the temperature is.

All Things Automotive & Diesel Service
1997 Walton Ave #C
Idaho Falls, ID 83401
208-523-3903

It's Brake Time (Brake Calipers)

Race car drivers have demonstrated the advantages of disc brakes, so most modern vehicles use them.  Sometimes just the front wheels have disc brakes, but many vehicles now have them all the way around. 

A major component of the disc brake is called a caliper.  It works by squeezing brake pads against the disc or rotor, kind of like a bicycle hand brake.  The brake pads themselves are what contact the rotor, causing friction to build and the wheel to slow down, but it's the calipers that apply the pressure to the pads.

Caliper design has evolved over the years, and there are two common types.  One is called a floating caliper.  It has one or two pistons on one side of the disc. When you push down the brake pedal, the piston or pistons in your caliper put pressure on that one side.  A mechanism connected on the other side of the disc applies pressure as well, squeezing your disc so the vehicle stops.  Floating calipers are less expensive since they have fewer parts.

The other type is called a fixed caliper.  They use pistons on both sides of the disc, sometimes several.  They are often used in more high-performance or heavy-duty vehicles.

Calipers can have rubber seals to keep out dirt, debris and moisture, but when that rubber wears out, sometimes the calipers can get contaminated.  They can stick or start leaking; they can even rust.  Then your caliper can get stuck applying that "squeeze" when you are not pressing on the brake pedal.  Or they can get stuck in the other position, not applying stopping power when you press the pedal.

When this happens, it's not unusual to feel your vehicle pull to one side when you brake.  You might notice a burning smell from the constant friction if the caliper is stuck on, plus you may feel the heat from the wheel after you park and get out of your vehicle.  Sometimes you'll hear a high-pitched sound or clunk if your calipers are binding up. 

That's your cue to have them checked out at your vehicle service center.  If your calipers aren't working correctly, it can be a safety hazard.  Sticking calipers can affect your ability to steer and stop; this is the kind of "brake time" you need so you can get them back on track and working properly.

All Things Automotive & Diesel Service
1997 Walton Ave #C
Idaho Falls, ID 83401
208-523-3903

I NEED All Wheel Drive (Pros and Cons of AWD)

So winter has arrived and you don't feel confident in how your 2-wheel drive vehicle does in the snow and ice.  You envy all those people with all-wheel-drive (AWD) and 4-wheel-drive (4WD) cars, trucks and SUVs.  You start thinking, "I need one of those.  I'll be able to go anywhere without any worries."  The truth is there might be another option for you that you might not have thought of. 

Sure, you've seen the ads that tout the advantages of AWD and 4WD, and some of the videos make it look like they can handle everything Mother Nature can throw their way.  The truth, though, is that vehicles with drive wheels at all four corners can't stop any more quickly than those with 2-wheel-drive.  Yes, AWD and 4WD vehicle have advantages when it comes to acceleration, but when it comes to stopping and handling, they generally don't. 

If you buy a new AWD or 4WD vehicle, you are going to spend thousands of dollars.  Maintenance and upkeep costs are higher due to the vehicle's increased complexity and weight, and you're likely to take a hit in fuel economy.  So, what's the option we mentioned above?  It's simple.  Winter tires. 

If you have a front-wheel-drive (FWD) vehicle with winter tires, you'll notice a tremendous difference in your winter traction and stopping than the all-season tires that are on most vehicles.  One tire company, Michelin, wanted to find out which was better in the snow: an AWD car with all-season tires or a FWD car with winter tires.  And they found while the AWD car could get going a little more easily, in most of the other comparisons, the FWD car with winter tires handled equally or better and stopped in a shorter distance.  The optimal combination would be, of course, AWD or 4WD with winter tires.  But one major consumer testing magazine found that only about 12 percent of their subscribers who drove AWD or 4WD vehicle in the snow for more than 6 days in the previous winter even used winter tires!

So a set of winter tires may give you the handling and stopping you're looking for and for a lot less cash than a new AWD vehicle.  Consult your service advisor for some recommendations.  You may be pleasantly surprised at how you can handle winter roads without having to handle a new, big, fat monthly payment for a new vehicle. 

All Things Automotive & Diesel Service
1997 Walton Ave #C
Idaho Falls, ID 83401
208-523-3903

Prepare Your Windshield for Winter (Wiper Blades and Fluid for Freezing Temperatures)

Winter and freezing temperatures present challenges for different parts of your vehicles.  For example, winter tires give you better traction on snow.  But some parts of your vehicle that may need special attention for winter are your windshield wipers. You may have found yourself in the middle of a snowstorm when your windshield wipers are doing nothing but streaking slush that ices up on contact on the glass.  Now you're more blind than you were before!

Obviously being able to see during a snowy or icy winter event is important for the safe operation of any vehicle.  So keeping your windshield and rear window clean can go a long way to guarantee you can see your surroundings.

Let's start with the wipers.  Blades that are good for hot weather may not be robust enough for freezing weather. You can buy special winter wiper blades that stay flexible during sub-zero temperatures.  The stiffer frames that hold them have a rubber covering that prevents ice and snow from building up.  Another style is beam wipers that have a one-piece design, intended for use all year long.  Since these have no separate frame, ice can't build up like on traditional frame wipers.  

If you've ever had salty road brine kicked up on your windshield, you know it can blind you in a second.  So you absolutely must have windshield washer fluid available to clear your vision.  The fluid you use during the warm weather months will often freeze below 32°F/0°C, and that can actually make things worse by icing up your windshield when you spray it.  Worst of all, it may freeze in your washer reservoir.

Be sure to use washer fluid that is meant for sub-freezing temperatures; special formulas will remain a liquid in weather as cold as -30°F/-34.4°C.  Some contain alcohol to keep them flowing; some have a little antifreeze that will melt snow and ice.  If you do use these liquids, make sure to keep them away from small children and pets because they're poisonous if they drink them. 

Each climate is different, and there are windshield products to meet your needs.  Your service advisor can recommend which ones will work best for you.  The idea is in winter, you need to be able to see. 

All Things Automotive & Diesel Service
1997 Walton Ave #C
Idaho Falls, ID 83401
208-523-3903