This is a farce. ...we have discussed these things here before. Dont go putting funny crap in your car that didnt come from the manufacturer. These guys have R&D departments which spend billions researching how to produce fuel efficient cars, which is how VVTI, mivec, commonrail, FSI and all those other technologies come to be.
http://www.wazua.co.ke/f...spx?g=posts&t=15272