jumilla

I think the key is to ask DCH to use 0W-30 oil.  They used 5W-40 oil for my first visit.   My RK1 performed poorer after the first visit.  Before first visit, gas consumption was just above 9.x litre/100km (mileage was 31xx in the first visit).  My car's recent gas consumption is around 10.2 litre / 100km (mileage now is around 65xx).  

This time I demand them to use 0W-30.  But the service representation has many many excuse.  My car is now waiting at DCH for parts to repair.  Don't know if they can support 0W-30.  Probably I will know by end of next week.

jumilla

Oil will be included with the package.  Ask for 0w30 before you go.

jumilla

Collected my car today (2nd service visit).  DCH used 0W-30 engine oil this time.  I think many users complained to them on gas consumption going up with 5W-40 engine oil.