The more that goes in the more chance of a problem, so if it is a fair amount like you say, then a flush will be a good idea, change the filter and run a fuel system cleaner as well, best to be safe than sorry.
Oct 2, 2011 at 8:59 AM
CJ MEDEVAC
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IF THIS WERE MY SO CALLED "FRIENDS" DOING THIS---THAT'S WHAT I'D BE CHANGIN' 1ST!