Q. I have been following a story out of California that, in a few years, the state will require special low rolling resistance tires to improve fuel economy. Although I am always looking to get more miles per gallon on my truck, I don’t like the idea of being told I can only buy a certain type of tire. Will these rules be implemented on the East Coast?

A. Studies show that when the rules are fully implemented, California motorists could save up to $1 billion annually in fuel and energy costs and avoid approximately 2 million metric tons of carbon dioxide emissions each year. Will this initially cost consumers more? Studies estimate an increase of about $6 to $30 per set of tires. Another unknown, from what I have read, concerns tread life. These tires also need to meet a minimum wet-grip requirement while still maintaining low rolling resistance. My biggest concern is that, as a vehicle ages, its use often changes. The truck or car you drive as your primary transportation today may become a second or third vehicle in the household and may not justify the expense of a premium low-rolling-resistance tire. In theory, regulations like this could limit consumer choice and make it harder to match the tire to the vehicle’s actual use. To answer your original question, as of now, I know of no states that are looking to adopt this legislation.

Q. I have an old 2000 Chevy Silverado. Recently when I go to fill it up no matter which way I turn the nozzle I have to go super slow or the handle will shut off. Any ideas why this is happening?

A. This is usually a result of a clogged vent which is part of the evaporative emissions system. A plugged or clogged EVAP vent valve is quite common especially in 20-year or older vehicles. If the vent can’t open, the tank cannot breathe while filling. I would start with a visual inspection. A kinked vent hose is also a possibility. In addition, an emissions code that points to an EVAP issue will also be a clue to the problem. 

Q. My 2014 Chrysler 300 has had an intermittent no-start problem since new. The dash lights flash, but the engine won’t start. A roadside technician recently suggested turning the steering wheel while pressing the brake and start button, which worked. No diagnostic codes have ever been found. What could be causing this?

A. Once you’ve checked the basics, including battery condition, electrical connections, and the key fob battery, it’s time to look at the symptoms. I suspect the steering wheel is placing enough pressure on the steering lock mechanism to occasionally bind, preventing the lock from releasing and the vehicle from starting. Without diagnostic trouble codes and with a problem that occurs only occasionally, pinpointing the exact cause can be challenging. Unfortunately, intermittent issues like this can be difficult and expensive to diagnose because the vehicle often operates normally when inspected.

Q. I am an AAA member and looking for a reliable and reasonable repair shop for my Acura and Honda near me. 

A. AAA has Approved Auto Repair Facilities nationwide. These facilities provide a 2-year 24,000-mile warranty and up to a $75 total discount in labor charges for AAA members. If there is ever an issue with the repair or the repair process, someone from one of the approved auto repair specialists can get involved and help you solve any issues. Go to aaa.com/repair to find an AAA approved shop in your area. 

Q. I had some scratches on the hood of my Buick and tried to remove them with Turtle Wax Rubbing Compound. Instead, it seems to have removed some of the clear coat. The instructions didn’t warn about this possibility, and Turtle Wax never responded to my complaint. The dealer quoted $4,200 to repaint the hood. Do I have any other options?

A. Much like sandpaper, paint-care products vary in aggressiveness. Waxes and polishes add shine, polishing compounds remove minor surface defects, and rubbing compounds are designed to cut into the top layer of the finish to remove heavier scratches and oxidation. Before considering a costly repaint, I would visit a reputable automotive detail shop. A skilled detailer may be able to improve the appearance with paint correction and polishing. Another lower-cost option is a wipe-on clear coat restoration product. While not a permanent repair, these products can often restore gloss and improve appearance at a fraction of the cost of repainting.

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