minus-squareDoomster9@alien.topBtoMechanic Advice@gearhead.town•2012 Honda civic lost roughly 20 percent on miles per gallon after oil change.linkfedilinkEnglisharrow-up1·10 months agoHonestly I think the oil has nothing to do with it, see if they left the air box and any associated hoses loose/broken when checking your air filter. A tiny vacuum leak could easily cause the vehicle to use more fuel. linkfedilink
Honestly I think the oil has nothing to do with it, see if they left the air box and any associated hoses loose/broken when checking your air filter. A tiny vacuum leak could easily cause the vehicle to use more fuel.