If the type of fuel or the type of brake pads you put on had a direct impact on your likelihood of getting in a giant accident in the future they would regulate that and require you to buy from insurance-approved brake companies.
In effect this is how home appliances are regulated. You have companies like ETL Intertek and Underwriters Laboratories performing fire and electrical safety testing of home appliances, originally on behalf of homeowner's insurance companies(See the definition of "Underwriter"). It's effectively self-regulating because the Intertek or UL stamp implies a certain degree of care. And based on some lease provisions I've seen the insurance companies for buildings do require use of certified equipment as a condition of coverage in many cases.
In effect this is how home appliances are regulated. You have companies like ETL Intertek and Underwriters Laboratories performing fire and electrical safety testing of home appliances, originally on behalf of homeowner's insurance companies(See the definition of "Underwriter"). It's effectively self-regulating because the Intertek or UL stamp implies a certain degree of care. And based on some lease provisions I've seen the insurance companies for buildings do require use of certified equipment as a condition of coverage in many cases.