new (not really) oil from mobil 1, 0w-30 and 0w-20

[Inspector14]

Originally Posted by TheSilkySmooth

Dont fall for the BITOG bull. Edge is a superior oil with stroong ADDS pack and long drain capability and cold flow in the 5w-30 wt close to 0w-20. I would run the 5w-30 edge though - its pretty much a "strong" 20wt. Its also easily good for 7500+/6 mo OCI in any circumstance. Given its cold flow, its majority REAL synthetic base, whereas the Shell is prob a slack wax group iii+ not bad, but not a premium $$ basestock - A good $4/qt oil though. BTW, EDGE is on sale at walmart for 26.50 in my town for 5 qt jugs ($5.30/qt - not bad for a extended drain oil (ACEA A5 that meets corvette spec)

its not the infor from BITOG that i am going away from edge. i am looking at the raw data from the testing done for the product data sheet. this compares 5w-30 edge to 5w-20 penn plat, they dont make a 5-20 edge.

Castrol Edge 5w-30: cSt @40* C = 54.1, cSt @100*c = 9.8, crank viscosity @ -35*c = 4075, pumping viscosity @-35c = 11524.

Pennzoil Platinum 5w-20: cSt 40*c= 46.8, cSt 100*c= 8.4, crank visc= 4250@-35c, pump visc 9700@ -35.

the best one i found was FormulaShell Synthetic 5w-20, but i cant get that here other than from a wholesaler by the case.

FormulaShell 5w-20: cSt @40c = 46.5, cSt @100c = 8.7, crank visc= 3480@-35c, pump visc = 9300 @-35c

i would bet mobil1 would have similar properties, but their data sheets do not provide all of his information. what did surprise me was how "thick" Amsoil is when its cold, and also how thick royal purple is as well. amsoil did no provide a cold pumping viscosty, but royal purple comes in at 22,000. well above any of the other group 3 synthetics.

i dont really care about additive packs, etc. they are all good enough if the have the API ratings, and the Ilsac ratings. they are all so close together anymore.

i was only looking at cold flow poperties. how well the oil could be pumped and how well it flowed in cold, cold weather. My car is parked outside all winter long, with no block heater or even a place to plug one in if i had one, so i need an oil that will still flow very well even when its -30* outside.

ps, idont know if those measurments are what i should be looking at. im sure the lower cSt number = "thinner"/ more fluid/ less viscous. and i think that the crank and cold pump numbers = lower is less viscous. 1= water that kinda thing.