Quote:
Originally Posted by Bashy
I was under the impression that the reason not to do a "gibbons" jobby was purely so that you do not force any debris into parts it shouldn't reach, but once you've done a sump dump, added new and let that circulate for a time, then a "gibbons" is beneficial......
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Not if it's high mileage, sump-dump every time but if it hasn't been done for a while, a sump-dump once a month for 2-3 months then once a year.