My friend has a 1990 Honda CRX 1300 HF with 270,000 miles that gets used to deliver pizzas every night. Keeps on going. The original owner (from whom he bought the car) used Mobil1 synthetic since the very first oil change.

I started using Mobil1 at around 60,000 miles in my 96 Accord. I just recently sold the car with 165,000 miles running just as solid as it did the day I bought it. Never once had a single engine problem!

I'm going to run dino oil in the 06 for the first 10-15,000 miles and then convert over to Mobil1.