In D-4 direct injection, fuel and air is injected directly into the cylinder, instead of mixing it in the intake port which is how conventional fuel injection works.
The Toyota Camry 2.0 available locally runs a 1AZ-FE which is similiar, just without the D-4 direct injection and using conventional electronic fuel injection instead.
Computes the miles per gallon and can estimate monthly and yearly gas expenses based on the miles driven per day and the cost per gallon.
How to save money by improving fuel economy and performance in any vehicle by up to 30% or more without expensive gadgets. Gas Mileage Bible is a must for anyone who drives a car. Simple scientific explanations on what causes losses and gains in fuel economy. Clear-cut gas-saving solutions, breaking down into straightforward categories: "no tech", "low tech", and "high tech".
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