Originally Posted by gman2304
Have you used conventional oil exclusively in your new car or truck beginning with the first oil change, in the last 5 years?
Last new vehicle was bought 8 years ago, so no.
The Scion did get it's first 5 oil changes done at the dealer with TGMO, so it started out on conventional, but since then, it has nothing but synthetic (because with clearance, sales and rebates, synthetic is cheaper than "conventional").