I was just wondering about motor oil. I am getting ready to change mine before a big trip and was thinking about switching to synthetic. The ONLY reason I would do the switch at the moment is for cold flow properties. At the moment, I am running Delo 400 and when it is -20 to -30 in the mornings before work, it takes a good 5 minutes or more of idling to get up to 40 psi. That cant be good!!
What does everyone think? Will the synthetic really flow that much better at those temps? I have never run synthetic before.