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19bonestock88 · 11-01-2016, 11:13 PM

Cold winters usually mean thinner oil, I would guess that if you spend much time below -10C, a 5W-30 should do fine... It's my experience however that older designed engines aren't quite as picky on oil viscosity as the newer designs are...

11-01-2016, 11:13 PM	#99 (permalink)
19bonestock88 Master EcoModder Join Date: Jun 2016 Location: KY Posts: 1,352 IGL - '04 Saturn Ion Team Saturn 90 day: 56.19 mpg (US) Thanks: 63 Thanked 366 Times in 269 Posts	Cold winters usually mean thinner oil, I would guess that if you spend much time below -10C, a 5W-30 should do fine... It's my experience however that older designed engines aren't quite as picky on oil viscosity as the newer designs are... __________________ My current Ecotec project... My last Ecotec project...