AOA!!!I own vitz 2006 1KR-FE engine,,having almost 100,000km done on odometer,,,I recently went to oil shop for oil change,the concerned person first open the oil filter cap & showed me the white smoke coming out from engine,,,he recommended me to use thick oil rather then 5w20(zic),,so he filled with 15W40,,,,,
now my car is vibrating very badly and engine noise also increased,,,,,though there is no white smoke coming out from exhaust and the reduction of oil was minor,,,plz give me remedy for this problem,,,
Your quick response will be highly appreciated,,,,