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every1 on here says them oils but in da book it says 10 40s why does no 1 use dat
sory 4 da hijack s2queen
Engines are over 20 years old so things are a bit 'slack' unless it's been freshly rebuilt, also unless your running standard boost the oil will be getting a lot hotter than it was when Ford spec'd it for the car so you need a oil that will deal with thoses temps and not thin out too much! Hence the upgrade from 40 to 50.