We are conveniently located 1 mile west of Interstate 90.
FREE Wi-Fi
FREE Multi-Point Courtesy Inspection
We Offer Military Discounts
Your Neighborhood Full Service Repair Facility
Closest Auto Repair Shop Off of Interstate 90 (1 Mile West)
May 31, 2017
Today's Tuffy Rockford post focuses on using coolant. 
If you pour in the wrong kind, it won't protect the cooling system and may even void the warranty. Check your vehicle owner's manual. Of course, your Tuffy Rockford service advisor will know the proper coolant for your vehicle.
Brake fluid is confusing for some Loves Park drivers. Back when we opened Tuffy Rockford, most vehicles used Dot 3 brake fluid. Now we have Dot 4 and Dot 5. Some Loves Park residents mistakenly think the higher numbers are an upgrade. You know, if 3 is good then 4 must be better. That's not how it works. They are different formulations to meet the demands of differences in brake systems. Only one of them is designed for your vehicle.
Ditto for transmission fluid. For decades there were two basic types of tranny fluid used at Tuffy Rockford: friction modified or not. With the tremendous engineering advances in vehicle automatic transmissions, there have been several new types of fluids developed to protect and lubricate them.
Nowhere are the advances in automotive fluids more evident to Tuffy Rockford professionals than in motor oil. Many new weights and formulations have been created to meet the demands of today's high-tech vehicle engine design. Modern engines have more parts and much tighter tolerances.
That's where the new grades of engine oil come in. They have to be formulated to lubricate, protect and clean all of those vehicle engine parts, big and little. The oil has to be thin enough to get into little passages, yet resistant to vaporization.
At Tuffy Rockford in Loves Park, we believe that in some ways modern automotive fluids are just as impressive as the new engines. Because weights of oil and types of coolant and transmission fluid are so carefully matched to the vehicle, make sure you always use the proper fluid if you are topping off at home.
Tuffy Rockford
6574 E. Riverside
Loves Park, Illinois 61111
815.639.1239
March 9, 2025
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As your vehicle ages, its performance isnt quite what it used to be, but many of us never notice the change because its gradual. So here are a few questions to ask yourself. Does your vehicle feel like it doesnt have the pep that it used to? Have you noticed your fuel economy isnt quite as good... More
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