What about the synthetic blends already out there? Will they have those same characteristics of the full synthetic stuff like better cold starts and taking longer to break down? If so, I may give that stuff a go because I found out it is not much more at all than regular oil.


1968 Chevy C-30 292 SM 465
1995 Jeep Grand Cherokee 242 4.0
2005 Jeep Wrangler SE 2.4L & 6 spd