January 15, 2017
Hello St. Johns drivers, let's talk about batteries. Car batteries are just like any rechargeable battery. They will eventually wear out and die. If you are shopping for a new battery in St. Johns , here's some auto advice to help you.
There are two measurements to consider when purchasing a new battery: cold cranking amps and reserve capacity. The power required to start a cold engine is measured in cold cranking amps. The number you need is determined by what kind of vehicle you drive and where you live. In general, higher-cylinder engines require more cold cranking amps than lower-cylinder engines. In other words, an eight-cylinder engine needs more cold cranking amps than a six-cylinder one. Also, diesel engines require more cold cranking amps than gasoline engines.
The weather where you live in Florida also determines the number of cold cranking amps you need. The colder the vehicle engine, the more power it takes to get it started. Also, cold Florida weather reduces the electrical efficiency of the battery, which reduces the amount of energy available in the battery to start the engine. Thus, in freezing temperatures, you need more power to start an engine, but you have less power available to get it started.
Your friendly and knowledgeable service advisor at Tuffy St. Johns in St. Johns can help you choose an appropriate battery for your vehicle and your lifestyle. If you need extra power owing to cold weather or a need for more reserve capacity, you may want to choose a heavy-duty battery. Just make sure it fits into your vehicle. An oversized battery may give you the power you need, but it's a serious safety hazard if the terminals come into contact with other parts of the vehicle.
Keep in mind that preventive maintenance performed at Tuffy St. Johns and good vehicle care can extend the life of your battery. Judicious use of electric gadgets and good driving habits are wise and can help you get the most out of your battery.
Tuffy St. Johns
2770 Racetrack Rd.
St. Johns , Florida 32259
904.230.3363
October 12, 2025
When you see some liquid sitting underneath your vehicle, your mind starts churning. Is that normal? Is that something serious, or did I just spill my drink? Heres a quick list of what those fluids look, smell and feel like, as well as what they might be. No, we dont recommend you taste them to ... More
October 5, 2025
When you notice one of your headlights has gone out, its important for the safe operation of your vehicle to get it changed and working again. Not only is replacing a headlight important for your ability to see in the dark, but its also vital that it be lighting your way and aimed correctly so o... More
September 28, 2025
Weve all noticed them at one time or another on the street: a car or truck that drives by and the deep roar from their exhaust system sounds like a drag racer on the line. But what happens when that rumble is coming from under YOUR vehicle? Well, it could be a sign your muffler needs attention. ... More