Quote:
Originally Posted by hd2000fxdl
While I always pick up a case or 2 of that when it's on sale and usually have 2 or 3 cases at home, well I do the same when Mobile 1 goes on sale as well, but back to the injector cleaner. I do that each time I change the oil, probably will do it every 5K on the BMW being it has a longer oil change interval. If it flots your boat to do it every 1K that's cool, but I would thnk that's overkill and probably just costing you money for nothing.
Harry
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It's cheap at costco, when it's on sale it's about $15 for 6 bottles
When I just start using those additives, my gas mileage gets worse every tank I add this in, but after 2 cases (12 bottles), overall mpg raises and I could get even better mpg if I just add it into a new tank.