I once had an old 94 Taurus 3.8 liter. I used old fashion havoline 10w30 for 12 years and at 200k miles, it never used oil. How did that happen...Now I am a fan of synthetic oils, don't get me wrong, but, but and but, it is sometimes hard to argue for them when you had very good success with old fashion dino stuff, just saying. Maybe I was just lucky on that 94 Taurus.
Anyone got any dino oil longetivity stories using old fashion dino oils.....