Northstar started in 1993 Allante and has had problems thru 97-98 because of
soft block castings, oil leaks and oil consumption, after 98-99 they are
good, if you like Cadillac a 2000 or later is the best car. Northstar is a
very fast engine with loads of torque.
All Cadillac technical questions answered, specializing in 1967 to 2005
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