My wifes 99 Blazer is ready to hit 75K. I've seen the TV commercials that tell me to switch to a HM oil at 75K. If her Blazer doesn't use or leak oil,or have any other mechanical problems is their a good reason for me to switch from the Chevron Supreme 10-30 I've used for the last few years?
I can get the Chevron on sale for less than a $1 a quart,the HM oils are almost double that.
I can get the Chevron on sale for less than a $1 a quart,the HM oils are almost double that.
