Okay so i have toyota vitz 2008 model it was 1.0L I swapped it with 1.3L i am using oil grade 20W50 and my car’s millage is around 250k should i switch to 10W40? Can I directly switch to this oil grade or should I keep using 20W50? And do 20W50 affects fuel avg?
yes switch directly.keep checking oil level to notice any reduction only
obviously yes.its the worst possible oil for fuel avg
10W30 API SN or above of any brand of your choice will be best
Use 5W-30 or 10W-30 Shell or Caltex Havoline. 20W-50 will destroy engine then you will have to swap again.
