@sheikh_wah yea 2.0D and saloon both have same engines,,,to get good fuel average,,,you have to shift gears at low revs,,on the highway,,dont exceed speeds over 115km/h.. and if you are using 15inch tyres than your speed should be around 100km/h! 205`s also drink more fuel compared to 185!
And about the engine oil Beverol MILO,,,its made in Holland,,,not available in shops,,its smuggled and my dad is using the same oil since 1995,,in nissan sunny 2.0D,In a corolla 2.0D 2000model and now in the present car!
Sunny when was driven under 50k kms ,,gave an avg of 25-26km/liter!!