Mechanic in can won't fix nothing with yur issue,Needs piston rings.I bet I handled hundered or more cheapie re ring jobs in my day.I ran service depts 30 odd years.They all went from bad oil users and smokers to moderate or less oil users,no smoke and ran great.Datsun/Nissan's mainly.Had many a parent with a Sentra or a 210 and high mileage that burned,leaked,smoked oil thank me for a saving them some money and keeping their college student son/daughter in wheels.This was common practice back decades ago.Sure they would have had a more exact ring fit with a bore job and new pistons but re-ringing,quickie valve job with new seals,timing belt and new seals for oil leaks these autos ran and drove great.Honda shop I use to get parts from did the same deal on Accords and Civics.