One of my mechanic advised me to use a bigger vacum filter, he said that a better fuel efficiency and performance could be achieved, is that true...it seesm some people even used few vacum filters connected in series....
errr...i believe the vacuum filter our bro is referring to is a product commonly known as Air Power Plus...it is selling quite cheap at lelong where i've bought one myself...to be honest i dunno whether it works or not as i'm also using other fuel saving devices but no harm trying as it only costs RM20 with free delivery...
does bigger vacum filter improve fuel efiiciency
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