We will be closed on November 28th and 29th for Thanksgiving | John's Auto Care - Boulder

Articles:

Better Service – Better Economy

The hottest Boulder news story may be different everyday, but there’s one topic that seems to come up over and over again – the price of gas in Boulder. But we’ve found several basic things that any Boulder vehicle owner can do to greatly reduce their gas consumption, save money, and help the Eldorado Springs environment. You can really impact your fuel economy by how you drive – but first, here’s a review of things you can do for your car that’ll save gas no matter how you drive. The first one is keeping your tires properly inflated. That can save two miles per gallon. Driving on low tires is like driving through sand – your car just has to work harder. Most Boulder service centers will fill up your tires for free, so just ask your service advisor. Also, make a habit of checking your tire pressure whenever you get gas in your car. Many Boulder gas stations have an air hose you can use for free. Another important item is to keep your air filt ... read more

Differential Service

What is a differential and what does it do? You may have been told your differential needs service, or seen it as an option up on the service menu. Differential service covers a lot of things, so let’s first talk about what a differential does. As you drive through a turn, your outside wheels and inside wheels turn at different speeds. Kind of like the cars going around a race track – the ones driving in the outside lanes have a greater distance to travel than the cars in the inside lanes. The differential is what allows the outside and inside drive wheels to rotate at slightly different speeds so that the tires don’t hop or skip while taking corners, or lose traction in dirt or snow. Differentials have gears in them that transfer the power from the drive train to your wheels – which is why they’re often referred to as gear boxes. The gears need to be very strong to do this work, and they need to be properly protected so that they’ll last. All vehi ... read more

Severe Service Requirements

A lot of our viewers have asked whether or not they should use their severe service maintenance schedule, which is listed in their car owners’ manual. It can be confusing. Let’s clear the air on this subject. Cricket Killingsworth is from QMI/Heartland, a manufacturer of automotive products and fluids. She’s been in the automotive business for 20 years and is a speaker, a trainer, and a writer. Cricket says there’s so much confusion on this topic because, “Most owners’ manuals actually have two maintenance schedules. Sometimes these are called ‘regular service’ and ‘severe service’. Sometimes they’re simply called Schedule 1 and Schedule 2. A severe service schedule recommends that things like an oil change, air filter replacement, and transmission service be done more often: either in fewer miles or in less time. Manufacturers create these specific schedules for each v ... read more

When Are Your Tires Worn Out?

Are your tires worn out? What is the standard for our Colorado roads? How can you tell on your family car? While there may be legal requirements for the Boulder area, there are safety concerns that go beyond meeting minimum replacement mandates. 2/32 is the depth of the tire tread wear indicator bars that US law has required to be molded across all tires since August 1, 1968. When tires are worn so that this bar is visible, there’s just 2/32 of an inch – 1.6 millimeters – of tread left. It’s that level of wear that’s been called into question recently. We’re referring to the Consumer Reports call to consider replacing tires when tread reaches 4/32 of an inch, or 3.2 millimeters. And the recommendation is backed by some very compelling studies. The issue is braking on wet surfaces in and a ... read more

Save on Gas – Clean Your Fuel Injectors

The last new car sold with a carburetor in North America rolled out of the dealership in 1990. Since then, all new vehicles have had fuel injectors. In very simple terms, a fuel injector is a valve that squirts fuel into your car’s engine. Your engine control computer tells the fuel injector how much fuel to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute in every single fuel-injected car driving around Boulder. Most fuel injectors for gas engines are known as port fuel injectors because they deliver the fuel to a port just outside the cylinder. The fuel pump provides pressure needed to squirt the right amount of fuel into the engine. Although more complicated, direct injection technology promises greater power with improved fuel economy for Front Range commuters. CO motorists ... read more

1900 55Th St Ste 104 Boulder, Colorado 80301 (303) 442-2932
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