Oil CheckAir Filter Check2 min idle before starting and parkingDo not press accelerator while starting engine.2 min idle for every 100 km Synthetic oilLow revs on starting and ending journeyTurbo Timer for TharAfter high speed drive or climb idle for 2 minWhen Idleing never leave any doors open orin closed area to avoid breathing fumesMy ideal rule of thumb is to idle for about 45 seconds before driving off, then drive in a relaxed mode for 10 minutes (enough time for engine oil to warm up). After that you can drive like a bat out of hell (if your car begs for it, and if traffic/roads will allow it of course). when you have time and some open roads, can you try this; drive up to 60 kmph and then change to third gear and let the clutch go, letting the car reduce speed by itself. This should allow the engine to check the oxygen sensor. You could check for errors after three/four repetitionsif yr stomach was upset, it maybe due to Gastritis, just have a PPI (Proton Pump Inhibitor)tablet like Omeprazole, Pantaprazole or Rabeprazole. Please refer dosage norms while buying them. No need to research further about the Etiology of yr disease.