Motul India Top Mistakes to Avoid When Changing Car Engine Oil Changing car engine oil might seem routine, but a few common oversights can impact your vehicle’s long - term performance. Whether you're using 5w30 engine oil or considering a shift to a 5W - 30 fully synthetic car engine oil, avoiding these errors can make all the difference in how smoothly your engine runs. 1. Using the Wrong Oil Grade Not all engine oils are created equal. Using a grade that doesn’t match your car’s specifications can lead to poor lubricatio n or higher fuel consumption. If your vehicle requires 5w30 car engine oil, switching to a different viscosity without guidance ma y do more harm than good. Always refer to your manufacturer’s manual — or consult a trusted service advisor. 2. Ignoring Oil Change Intervals Delaying oil changes can lead to sludge build - up, reduced efficiency, and even engine wear. While synthetic oils offer longer drain intervals, it’s important not to push limits. Even the best engine oil can't protect your engine if it's overused. Keep track of mileage and service history to stay on schedule. 3. Overlooking Oil Filter Replacement Changing the oil without replacing the filter is like cleaning a pool but leaving the filter clogged. A fresh filter ensures contaminants are properly captured, especially when using high - performance oils like 5W - 30 fully synthetic car engine oil 4. Not Checking Engine Oil Price vs. Quality Many drivers make decisions solely based on the car engine oil price. While budget matters, it’s equally important to conside r long - term performance. For example, though the 5w30 engine oil price may be slightly higher for synthetic options, you benefit from better thermal stability and extended protection. 5. Incorrect Oil Level or Tightening Adding too much or too little oil can lead to pressure issues or inefficient cooling. Similarly, overtightening the drain plu g can damage the oil pan. Always follow the torque recommendations and double - check oil levels after a change. Choose Engine Care That Goes the Distance At Motul India , we understand that quality matters — from selecting the right car engine oil to ensuring long - term protection. Our range of 5w30 engine oil solutions is engineered to deliver high - performance results, whether you're driving daily or pushing limits on the highway. Trust your engine with Motul. Discover our full range online and make every oil change count.