I have 1998 model khyver , driven mostly on CNG. I have been using Shell HX 3 20w-50 for two years.I was thinking to go for ZIC. So which ZIC should i use?Also can i use Liqui Moly additive(MOS2) to reduce engine sound?I didn't understand why its not advisable to go for 10-40 engine oil without checking engine health. and how will i check the engine health for going to 10w-40?
Go straight for caltex 10w30. I just moved from caltex 20w50 to 10w30 in margalla. I guess the oil flows better, because engine noise is reduced.
Mos2 additive is good for safety
thanks 3.5 liter of caltex 10w-30 and 0.5 liter MOS2 ?
