Motormouth: Follow fuel cleaner steps

Q: When using fuel system cleaner, why is it recommended that the gas tank be almost empty and to run the tank almost empty before the next fill-up?

A: I always recommend using the additive with a full tank of gas. Pour in the additive and then fill the tank. This blends it for the preferred concentration. Running the tank nearly empty makes sure the cleaner has done its job before it is diluted by another addition of fuel. You needn’t use an additive with every fill-up.

Q: I own a 2013 Fusion with the EcoBoost 1.6-liter. It has 51,000 miles, and I average less than 4,000 miles per year. Can I still observe the owner’s manual guidelines for plugs at 100,000 and a timing belt at 150,000? I plan on keeping it long term.

A: Your car is over a decade old and, if you want it to go even longer, follow the maintenance schedule.

Q: I bought a new Mitsubishi 2024 Outlander. During a below-zero cold snap, the engine stayed at very high RPMs at a low speed. The dealer checked it out and said everything was fine. He then said to “just warm the car for 45 minutes.” That seems excessive. What can I do?

A: I’m betting the dealer said “four or five minutes,” not 45. Drive gently for the first few minutes. In cold weather it takes a couple more minutes for the catalytic converter to get hot enough to control emissions. That’s normal. Idling too long would be a waste of gas, not to mention generating unnecessary pollution.

Q: I recently bought a used 2013 Tacoma. After replacing the battery, the stereo won’t go into either Bluetooth or phone mode from the setup screen. Also, the apps button (which is a physical button, not on the touchscreen), doesn’t do anything anymore. Is there a redo?

A: Yes. You need to go through a setup sequence. Your dealer or Toyota tech can do it.

Bob Weber is a writer, mechanic and ASE-certified Master Automobile Technician. His writing has appeared in automotive trade publications, Consumer Guide and Consumers Digest. Send automotive questions along with name and town to motormouth.tribune@gmail.com.