Yea 3k 3months is not the way to do it. If you must change the oil only once per year at least do it right before the "driving season"
Has anyone here done a before and after dyno test of switching to full synthetics? In a mustang magazine a few years ago they took a 100k mile mustang GT and switched it over to mobil 1, it gained around 4-5hp from switching to synthetics.
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