[QUOTE]Originally posted by Big Bear:
Sorry, Tim, but I have seen the Cold Cranking Numbers and they do not look as good as my next oil that I will be using in the wintertime.
Bear. I see you live in NY. UPSTATE? How cold does it get,and what is a typical cold start for you. Do you heat the oil pan in the winter? Have you ever had cold start issues with any particular oil.
I once ran ran Amsoil 20w-50 in a 1986 regal with a 5.0 olds v8 and it started no problem at around 0 F many times. M1 10-30 would allow valve train rattle at 40 F.
CD-2 detergent allowed the M1 to go another 2k with no rattle/tap for a total of 4k. Amsoil never needed CD-2.