I’ve been looking into switching my engine oil but I’m a bit confused about the best option, especially for an older car with over 100,000 miles. There’s a lot of conflicting information about synthetic, conventional, and synthetic blends, and I’m trying to figure out which one would be most beneficial for engine longevity and performance.
My car’s been running fine on the manufacturer-recommended conventional oil for years, but I’ve seen many reports suggesting that switching to full synthetic might offer better protection, especially under extreme temperatures and high-stress driving conditions. On the other hand, there are high mileage formulations that seem specially tailored for older engines, purportedly reducing oil consumption and leaks.
Has anyone here made the switch to synthetic or a high mileage formula? What improvements or issues have you experienced? I’m particularly interested in any recommendations based on real-world usage and any advice on what to consider before making the change (e.g., potential compatibility issues, costs, or maintenance tips). Any insights, personal experiences, or brand recommendations would be really appreciated.