I went to another mechanic today, and he told me that Generator bearing is okay, compressor has very minor sound but the tensioner [the middle pulley] has the most sound. After removing belt, I spun it and it making noise. I'll have it fixed on Saturday now.
As for drive, whenever I use PSO, PSO Hi-Octane, Shell, Caltex, it remains lazy, but when I use Total, it remains perfect. The pick, power and drive is smooth on Total too. On other fuel, it feels like its taking more power.
Should I take it to Toyota for Engine & Transmission oil change, also air, cabin and transmission filters? What about tuning, someone told me that Vitz do not require tuning like we do for Mehran etc after every x kms.
What plugs & oils should I use for maximum power & performance? Also, on motorway (Lahore ~ Islamabad), It only reached maximum of 150kms [200kms is the total speed]. Is this good ?
My Engine is 1KR-FE 990cc.