Help me group these oil brands

[Ironthinker]

I live in northern MN. When we have a -25f - 30f temp some night I'm going to invite some of my friends to my garage and have an oil pouring party. I need help putting each of the oils in the proper group. Valvoline Max LIfe 5W30 Pennzoil MultiWeight 5W30 Pennzoil High Mileage 5W30 Quaker State Winder Blend 5w30 Mobil 1 0W30 Amsoil 0W30 Castrol (German) 0W30 Formula 1 Extreme Winter Blend 0W30(MotoMaster Canada)

 

[tenderloin]

 

[Al]

quote:

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Originally posted by Ironthinker: I live in northern MN. When we have a -25f - 30f temp some night I'm going to invite some of my friends to my garage and have an oil pouring party. I need help putting each of the oils in the proper group. Valvoline Max LIfe 5W30- mostly group II Pennzoil MultiWeight 5W30- mostly group II Pennzoil High Mileage -5W30 mostly group II Quaker State Winder Blend 5w30- mostly group IIsome Group III Mobil 1 0W30- mostly group IV Amsoil 0W30- mostly group IV Castrol (German)- 0W30 Group IV and Group V Formula 1 Extreme Winter Blend 0W30(MotoMaster Canada)- mostly group II

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Just a guess