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"Modern engines with semi-synth are fine with a 10k oil change interval",
but this is based on assumption that Arc's 3.0L engine is immune to the sludge problem which haunted 2.3L engine of 9-5.
Is Arc's 3.0L engine totally immune to the sludge problem? Or it is just less prone to sludge than 2.3L engine?
posted by 70.114.34...
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