I have an old Honda B 100 - 10 hp, 1985 maybe?<br />I have good oil pressure av idle and to about 2500 rpm but then the oil light starts to flicker. My Honda mechanic says it´s a typical old Honda problem. The oil filter gets clogged and You have to mechanically, by brushing I suppose, remove the dirt. Is there a way to chemically remove the dirt from the oil filter in the pan? Maybe some additive?<br />Thanks,<br /><br />PikeMan