synthetic oil or regular
2003 Mitsubishi Montero Sport, whats better for this vehicle? should I use regular oil with lucas oil additive? or full synthetic?
Putting synthetic at this point will not benefit you and will be money going to waste. Use a good quality oil and if you have high miles then use one with the extra additive for high miles. The synthetic was not built for your year/model and will only benefit you if you have been using it from day one.
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