I have been using Mobil 1 in pretty much all my cars and trucks since I bought Tigger in 99. Prior to that, it was whatever was the cheapest name brand conventional oil. My mom's 94 Escort GT is the only car that we have owned that I have used synthetic in since it was new, well since the engine was broke in. I used valvoline synthenic then but it seemed to cause a lot of varnish in the engine. And then around 99 I switched to Mobile 1. The head cracked at ~105K so it came off and I was happy with the very little to no wear in the cylinders.