I'm always amazed at the number of people who make claims that "as long as you follow the manufacturers recommendations, the engine will last longer than you want to keep the vehicle". That is most certainly not true. Today, there are a very large number of vehicles and engine types that experience some form of lubricant related failure.
I like to use BMW as an example. For quite some time BMW has offered free service and oil changes. Those oil changes were extended for various reasons. Possibly to reduce owner hassle, maybe for environmental reasons and probably to reduce BMW's overall service expenses. A doctor I use fell prey to the BMW program, and the sludge was legendary. That's why I continue to post pictures of failed BMW engines, properly maintained according to the schedule.
I don't claim to "know better" than the manufacturer. I do claim that there are many negative factors driving a manufacturers oil requirements, many of those factors are contrary to long service life. In particular, there is an entire group of modern engines spread among major manufacturers, that will ABSOLUTELY give better service with a quality synthetic oil of the proper viscosity, and more frequent changes. BMW, VW, Ford, GM, Honda, Toyota, Hyundai and Kia all produce engines with oil related failure issues.
I like to use BMW as an example. For quite some time BMW has offered free service and oil changes. Those oil changes were extended for various reasons. Possibly to reduce owner hassle, maybe for environmental reasons and probably to reduce BMW's overall service expenses. A doctor I use fell prey to the BMW program, and the sludge was legendary. That's why I continue to post pictures of failed BMW engines, properly maintained according to the schedule.
I don't claim to "know better" than the manufacturer. I do claim that there are many negative factors driving a manufacturers oil requirements, many of those factors are contrary to long service life. In particular, there is an entire group of modern engines spread among major manufacturers, that will ABSOLUTELY give better service with a quality synthetic oil of the proper viscosity, and more frequent changes. BMW, VW, Ford, GM, Honda, Toyota, Hyundai and Kia all produce engines with oil related failure issues.
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