Originally posted by mr_froge:
Here is some help on the various oils and how they compare in Standard Performance tests  .. I would be reluctant to use any lubricating fluid without knowing the composition of the oil..
You can actually save money by using a synthetic such as AMSOIL which can give you up to 36,000 miles (or 12 months)between oil drains.. with improved performance and wear protection over the 3,000 mile stuff.. and believe me this isn't snake oil.. 
except amsoil looks to be getting its butt kicked in a head to head with mobil1 - it turned into a 10w40 viscosity in under 8k miles!
97 Contour SE MTX
K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust
04 Grand Caravan SXT
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