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Gene, if I had a tractor that burned oil that bad, as a last resort just in case the rings were all stuck n carboned up badly, I would change oil and add (totalling to the full amounts) a light weight detergent oil and add maybe one quart of auto tranny fluid and one quart of Rislone or similar engine flush to flush n clean things and possibly?? free up some stuck or carboned rings, and use her hot n hard for the recommended time. CAUTION this procedure may harm some seals if they were questionable !!! Then drain her out n refill with a heavier grade of good oil n see what happens (probably nothing different, but what the heck) Then see what highest heat range of plugs will still fit n work with no interference and make sure the ignition is well tuned n try her. You might even try (if plugs are washer type) an extra plug washer which makes em run hotter. Of course, you could even switch to an electronic ignition and use a high voltage high energy coil and run a wider plug gap as that may help keep potential fouling deposits off. After that expense n trouble (which may help nuttin, although the elec ignition may well allow longer plug use prior to fouling) then I guess you bite the bullett, rob the wifes cookie jar, n overhaul her (the tractor not the wife) Let us know, best wishes n God Bless John T
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