Ask Joe Mechanic - Increasing Fuel Economy Part 1

I realize that with the recent drop in gasoline prices that we have seen, conserving fuel is not something that is seriously on our minds. Even though prices are at about a six year low, it is still important that we should always try to conserve as much fuel as possible. It still keeps extra money in our pockets, but more importantly, it is good for the environment and it is good for our vehicles.

            There are four main groups of ways to conserve gas. First is the car we drive and how we take care of it. Secondly we can look at ways to save on the cost of fuel. Third is to examine our personal driving habits. And fourth is planning our trips. This week we will look at the first and next week we will try to look at the other three.

            Properly inflated tires can reduce fuel consumption by up to 3%. Your tires also lose about 1 PSI per month, and when the tires are cold (e.g., in the winter), their pressure will decrease due to the thermal contraction of the air. It is recommended to check tires at least monthly, preferably weekly. Having properly inflated tires will also help you avoid uneven wear on the tread. Recommended inflation pressures are for cold tires; put about 3 PSI more in if the tires have been driven on awhile. Inflate to the pressure recommended by the car manufacturer, not the maximum stamped on the tire.

            A properly tuned engine maximizes power and can greatly enhance fuel efficiency. Beware, though, that many tuners will disable efficiency measures when tuning for power. When doing a tune up, always check the air filter as a dirty filter will reduce fuel economy, or make the engine stall when idling. Just like mowing dusty grass, driving dusty dirt roads will clog the air filter: avoid dust clouds. Also, replace the fuel filter according to the car manufacturer's recommended schedule. This will go a long way to enhancing fuel efficiency.

            Get the lightest car that will serve your needs. Weight is one of the biggest causes for loss of kinetic energy in non-hybrid cars. If you're not shopping for cars, then take any extra weight off of the one you're already driving. If seats that you don't use can be removed such as in a van or minivan, take them out. If you use your trunk as a storage space for heavy things, find another place for them.  An extra 100 pounds of weight increases fuel consumption by 1-2%. (Weight is most important in stop-and-go driving.  In almost exclusively highway driving, it matters little: once the car is up to speed, it need only push air out of the way.) Don't remove things from the car that you need frequently; instead, make sure these are in the car and readily accessible because wasted trips to retrieve or replace them will be much worse than a little lower mileage.

            Another way to conserve gas is to use the tire width that the tire manufacturer recommends.  Narrow tires have less frontal area, thus reducing aerodynamic drag. Remember, however, that narrow tires have less traction as well (which is why race cars have such wide tires). Do not get a tire that is incompatible with your wheels, and do not get smaller wheels unless your manufacturer approves.  Select low-rolling-resistance compound tires. These can increase fuel economy by a few percent. (The difference is not startling or a substitute for proper inflation. It would be wasteful to replace the former tires with these before they are worn out.)

            On fuel-injected cars, make sure the oxygen sensors, engine emissions system, and evaporative emissions control systems are in good shape. Often the "check engine light" coming on is an indication that there is a problem with one of these components. A damaged oxygen sensor may cause your car to have too rich of a fuel mixture, decreasing your fuel mileage by 20% or more.

Ask Joe Mechanic - Winter Driving Tips

             Since we have had a few minor weather inconveniences due to snow and ice, I felt it necessary to review important things to consider when driving in winter conditions.  We already covered getting your car prepared for winter, but it is also important to prepare yourself for everything that winter can throw at you.

             The first thing is preparation. Now is the time to get all the things ready that you should have in your vehicle just in case you have a problem this winter. If you live in an area where winter can strike early and hard, such as around Hazleton as I have experienced, all of these items can prove of great importance, and in extreme cases, could mean the difference between life and death! A winter survival kit should include; a snow shovel (collapsible ones are handy and do not take up much space), a scraper/snow brush, tire chains if you travel in an area that gets a lot of snow, a flashlight with extra batteries, a bag of cat litter, sand or salt incase you get stuck, jumper cables, flares or an emergency triangle, and a bright colored cloth to signal for help.

You should also have a tight-sealing container in which you pack candles, matches or lighter, bottled water and snacks such as energy bars. Some of the most important things you should have in your car during the winter are; mittens or insulated gloves and a ski mask, a sleeping bag or blankets, first aid supplies, and any prescription medications for at least 2 days including diabetic supplies and a fully charged cell phone. I know this list sounds extensive and maybe a bit extreme, but it is much better to be over prepared than to be stranded and possibly not see help for a couple days.  This happened to man from Pine Grove a few years ago, he was on his way home from work on RT 501 just a few miles north a Myerstown and got stuck.  His car sat completely buried on the roadway in a drift for three days until he was rescued.

            When you experience bad weather, it’s also imperative to use common sense. As soon as roads become slick, slow down and increase the distance between you and the vehicle in front of you. If someone insists on following you too closely, pull over when safe and let them pass. One fallacy that many fall victim to is that ‘I have a 4WD so I do not have to worry.’ Yes, 4WD definitely gives you more traction and gets you moving better, but, most 4WDs are heavier vehicles and that extra weight will actually increase braking distances on slick roads. Also, on ice, 4WD actually can be more tricky while under power and stopping. Giving extra room not only allows you more chance to stop, but if the vehicle in front of you or an oncoming vehicle has problems, you have more time and space to take evasive action.

            If you find yourself in a skid, there are a number of things to remember and to consider depending on the situation. If the rear wheels are skidding, take your foot off the gas and steer in the direction that the car is sliding. If the front wheels skid, take your foot off the gas, shift into neutral and allow the car to slow itself and then start to apply light braking and steer in the direction you want to go. Even an expert can sometimes have trouble recovering from a skid. Snow tires can aid you in snow, but they will not make much difference on ice unless they are studded. 

            Should your car break down or you become stuck, there are a few things to remember. If you are able, try to get your car safely off the road surface. Put out flares or the warning triangle to increase your visibility with other drivers. If you are stuck, you should try to shovel your vehicle out, use some abrasive material for traction and see if you can rock yourself free. If you are unable to get free, make a call for help, but do not over use your phone as to retain its charge. You can run your engine for heat about ten minutes every hour, but leave a window open slightly for ventilation and always keep snow clear of your exhaust to prevent carbon monoxide buildup. Use your blankets or sleeping bag to keep warn and ration yourself on your snacks and water so that you do not exhaust your supply. Also remember that you can eat snow for your thirst, but not too much at once as this can lower body temperature. And, make sure it’s not yellow!

            Remember, some prior preparation, and use of common sense may prevent a very dangerous situation from developing!

Ask Joe Mechanic: Security and Anti-Theft Tips

Most anti-theft tips are common sense, but something that we occasionally need to be reminded of. While car thefts have dropped slightly, thefts from inside vehicles have

The Club in action.

increased dramatically in the last few years. Some of this is due to the increased use of technology and part is due to the need for money to buy drugs.

            First of all, never leave your keys in the car, even if you are just running in your house to grab something or to pay for your gas or a coffee at the convenience store. This is one of the highest sources of theft of vehicles that there is.  If you leave your keys in, your insurance quite possibly will not pay off a claim. Tying into this, always lock your car, even in your own driveway during the day. An unlocked car is an open invitation for thieves to enter the vehicle. Also, do not leave cell phones, laptops, iPads or GPS units in a place where they are clearly visible.

           

A newer threat, which especially targets women, is the snatch and grab at the gas pump. What happens here is that while a lady is on one side of her car pumping gas, a thief approaches the car from the opposite side and either reaches through an open window or opens an unlocked door and grabs her purse or whatever else they can reach and jumps into a waiting car.  If you leave your purse in your car while you pump gas, either hide it or lock the doors.

            If possible, whether at home on the street, at the mall or in the airport parking lot, try to park in a well lit area. It is also safer for you if you come out to the car after dark.

Cars parked in a dark area are an open invitation for thieves and for vandalism.

            If your car is equipped with an alarm system, get small decals for the both rear side windows that state, ‘This car protected by a vehicle alarm system.’ This just may make a would-be thief think twice about targeting your vehicle. If your vehicle does not have an alarm and it sits out a lot, this may still be a wise investment.

            Another deterrent to many thieves is the “Club.” These were very popular before many vehicles were equipped with alarm systems.  However, if your car sits in a high crime area, this just might be the thing that will make a thief say this vehicle is not worth the trouble.

             And finally, when shopping for a new or used car, it is a good idea to check with your insurance agent to see if the vehicle you are considering has a high rate of theft. This could mean one of a couple things, either the parts from that vehicle are in high demand or the vehicle does not have a very good security system.