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Anyone ever try running just a straight 10 or 15 weight oil? A lot of the 3800 guys run that in the regals and have success with their built engines. Ive been running 5w30 castrol gtx and no burning at all and the turbo doesnt seem to be coking the oil so Im happy with that. The other oils I tried in my old motor all burned but this gtx stuff resists the heat great.
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