quote:Synthetic is easier on the motor as we all know. Gas engines have started for many years with regular dino oil at cold temps. I personally have never had any issue with the cold temps and running regular oil although I have only had -20F once thankfully.
Originally posted by icruse: Just wanted to share my experience today. I have used the synthetic oils for the last 10 years (mostly Mobil 1 and some Amsoil); never really knew what winter was till I moved up here in northern Minnesota from northern Virginia. This morning it was -24 below zero and I was concerned as this weather was coming as to leaving in the regular oil on my 93 Pontiac Grand Prix LE 3.1 V6. Well, my concerns have been put to rest. My car is garaged but not a heated garage. The car started just fine (could tell no difference between this and the Mobil 1 0W30, and 5W30 from last year). This Pennzoil 5W30 works just great (regular multigrade 5W30). Good Day, Steven
quote:10w-30 or 5w-30; conventional or synthetic? You guys got the brunt of the cold compared to us here in CO Springs with a balmy -8F on my deck at 7 am this morning!
Originally posted by Starbreaker666: -18 out here on the plains of Colorado. Both of our vehicles started right up. Oil pressure came up normally on both vehicles. What do we use? Valvoline!!!!!!!!!!!! ehheheheheh.