Just sharing from what I have read in Bitog as posted by dnewton3; synthetic oil vis a vis mineral oil
Fuel economy is most controlled by driver attitude and style; the foot is the main contributor/detractor to efficiency!
A realistic view of efficiency gain is likely 2% or so.


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damn, I thought I'm in good hands with motul (bec. of its price *700/L) been using the crdi-specific for years now.
what brand can you recommend as replacement sir? will use for 4m41(vgt) and 2KD(non-vnt)
