Black smoke present and engine burning oil

[hharoon338]

Hello everyone, My tension is increasing day by day with Santro. I have a black Santro 2007. Two days ago I realise the engine oil level decreasing. Further black smoke is present in the exhaust. Long story in short I changed the top sensor ( that connected with the throttle body) the fuel average is now pretty good in the city ( 10/L ) as compare to the previous ( 6/L). But light black smoke is still present and I believe the average should be better after fixing the black smoke problem. One mechanic said to change the map sensor but the engine check was not present then why? The second issue is burning engine oil but no blue smoke is present at all. The mechanic said to change the ring, valve, seals. gas kit that will cost me 20k with labor. Please suggest to me how to fix that problem. I am new to the automotive industry. Evey help will be appreciated. Thanks

[Massive_One]

when there's black smoke and engine's burning oil .. it means the old fella needs a break : (

valve seals are leaking causing the oil to leak in combustion chamber and burn in engine and emitting black smoke ...

so i am afraid the mechanic is right.. time to spend money : (