Posted on 6/30/2025

Oil changes are one of the most important parts of regular car maintenance. Engine oil keeps your engine parts lubricated, reduces friction, and helps carry heat away from critical components. Over time, oil breaks down and becomes less effective at protecting your engine. While many drivers know oil changes are essential, some wonder how long they can really wait once that due date has passed. What Happens to Oil Over Time As engine oil circulates, it picks up dirt, debris, and tiny metal particles. Heat from the engine also causes oil to lose its protective properties and turn into sludge. When oil becomes too old or dirty, it can no longer provide proper lubrication. This increases friction inside the engine, leading to extra wear on parts like pistons, valves, and bearings. Manufacturer Recommendations vs. Reality Most manufacturers recommend changing your oil every 3,000 to 5,000 miles for older vehicles, or every 5,000 to 7,500 miles for newe ... read more
Posted on 1/1/2019

Two of Hannah Wollsdorf's Welding classes came to Northside Automotive last week for a tour. Pictured below is Sean Smith showing them around the shop. Sean explained how the various pieces of equipment work and how they benefit an auto repair shop like theirs. He showed them examples of how welding not only helps to repair vehicles, but also many examples of custom fabrication like building benches and railings.
Posted on 11/24/2015
Welcome to the new Northside Automotive website where you can shop for tires online, read tire reviews, learn more about our automotive services, and contact us for additional information. Day or night, you can access this tire and auto repair website when you need it. When you’re done browsing, you can find us at North 4356 State Highway 22 in Montello, WI. We proudly help drivers from Montello, Westfield, Portage, and surrounding areas. We appreciate you choosing Northside Automotive and are happy to have you with us online