I’m Mehran Khan. For the past two years I’ve worked hands-on in car bargaining and car accessories — sourcing parts, comparing brands, and seeing firsthand which ones hold up and which ones don’t. This site is a car engine accessories guide in the truest sense: every recommendation on engine oil, spark plugs, air filters, and fuel filters comes from real product comparisons and manufacturer specs, matched to your exact vehicle — not generic advice copied from one article to the next.