Canola oil is also very high in healthier unsaturated fats. It's higher in the omega-3 fatty acid alpha-linolenic acid (ALA) than any other oil except flaxseed oil. ALA is particularly important ...

What would be better or best concerning the interval between oil changes using 5W30 synthetic oil versus regular 10W30 or 10W40 oil? My vehicle is a 1996 Ford Ranger with 143,000 miles on it.