https://trackmiles.app/blog/ Practical guides on tracking car maintenance, picking service intervals, and getting more from your car when you sell. From the makers of Miles for iPhone. en-us Sat, 13 Jun 2026 12:00:00 +0000 https://trackmiles.app/blog/when-to-change-brake-fluid https://trackmiles.app/blog/when-to-change-brake-fluid Sat, 13 Jun 2026 00:00:00 +0000 Brake fluid is mostly a time-based service, commonly changed every 2 to 3 years, because it absorbs moisture over time. Why it matters, the warning signs, and getting the DOT spec right. https://trackmiles.app/blog/when-to-change-coolant https://trackmiles.app/blog/when-to-change-coolant Sat, 13 Jun 2026 00:00:00 +0000 Older conventional coolant is commonly changed around every 30,000 miles or 2 to 3 years, while modern long-life coolant lasts far longer. Why coolant type matters, plus the warning signs and safety cautions. https://trackmiles.app/blog/spark-plug-replacement-interval https://trackmiles.app/blog/spark-plug-replacement-interval Sat, 13 Jun 2026 00:00:00 +0000 Spark plug life depends mostly on the plug material: roughly 30,000 miles for copper, 60,000 for platinum, and 100,000 for iridium. Why the material changes the interval and the signs of worn plugs. https://trackmiles.app/blog/how-long-do-car-batteries-last https://trackmiles.app/blog/how-long-do-car-batteries-last Sat, 13 Jun 2026 00:00:00 +0000 Most car batteries last about 3 to 5 years, but heat is the biggest factor and cold is what usually exposes a weak one. The warning signs, and why you should test before you replace. https://trackmiles.app/blog/electric-car-maintenance https://trackmiles.app/blog/electric-car-maintenance Sat, 13 Jun 2026 00:00:00 +0000 EVs skip oil changes and spark plugs, but lower-maintenance is not no-maintenance. The short list an electric car still needs: tires, brake fluid, cabin filter, coolant, and the 12V battery. https://trackmiles.app/blog/used-car-maintenance-records https://trackmiles.app/blog/used-car-maintenance-records Sat, 13 Jun 2026 00:00:00 +0000 A clear service history helps a private sale move faster and can support a stronger asking price. The full checklist of what to gather, and how to share it without giving away your personal information. https://trackmiles.app/blog/how-often-rotate-tires https://trackmiles.app/blog/how-often-rotate-tires Sat, 13 Jun 2026 00:00:00 +0000 Most tires want rotating every 5,000 to 8,000 miles, and many drivers just do it at every oil change. How to find the right interval, pattern, and signs you are overdue. https://trackmiles.app/blog/brake-pad-replacement-intervals https://trackmiles.app/blog/brake-pad-replacement-intervals Sat, 13 Jun 2026 00:00:00 +0000 How long brake pads and rotors really last, the warning signs that mean replace now, and why catching worn pads early saves your rotors and your money. https://trackmiles.app/blog/when-to-change-transmission-fluid https://trackmiles.app/blog/when-to-change-transmission-fluid Sat, 13 Jun 2026 00:00:00 +0000 Transmission fluid change interval ranges for automatic, manual, and CVT cars, the warning signs to watch for, and why the owner's manual is always the final authority. https://trackmiles.app/blog/car-air-filter-replacement https://trackmiles.app/blog/car-air-filter-replacement Sat, 13 Jun 2026 00:00:00 +0000 Engine air filter vs cabin air filter: two different parts on two different schedules. The interval ranges, the warning signs, and how to keep track of both. https://trackmiles.app/best-car-maintenance-apps https://trackmiles.app/best-car-maintenance-apps Tue, 09 Jun 2026 00:00:00 +0000 An honest comparison of the best iPhone car maintenance apps for 2026 — Miles, Drivvo, AUTOsist, Simply Auto, and Carfax Car Care — on pricing, privacy, features, and what to pick. https://trackmiles.app/blog/when-to-change-engine-oil https://trackmiles.app/blog/when-to-change-engine-oil Tue, 09 Jun 2026 00:00:00 +0000 The 3,000-mile rule is mostly marketing. What manufacturers and mechanics actually recommend, and how to choose between 5K, 7.5K, and 10K oil change intervals. https://trackmiles.app/blog/how-to-track-car-maintenance https://trackmiles.app/blog/how-to-track-car-maintenance Tue, 09 Jun 2026 00:00:00 +0000 Why a real maintenance log pays for itself the day you sell, what to write down for every service, and how to pick intervals that match how you drive.