Put some samples of oil in my freezer, -33C, 48 hours. Tested oils are M1 0W-40, Castrol SLX Longtec 0W-30, GM Opel Full Synth 5W-30, Total/Fina First Synth 5W-40, Statoil LW Full synth 5W-40, Shell 5W-40 full synthetic, Shell 10W-40 blend, Shell 30wt dino.
Pour test ranking (best first):
1 -...