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Make sure you gapped your plugs and they are proper heat range


If the transmission is slipping now a rebuild will give you a slight gain in mpg. If you have the optional towing differential with a 3.92 ratio then changing to the standard 3.55 will also yield a small gain. This will hurt acceleration though, while increasing highway mileage. The biggest issue is "cost to benefit" ratio and the time to recoup those costs ...


"Better fuel economy and acceleration" are typically mutually exclusive. You'll gain one at the expense of the other. The easiest way to influence these is by the use of your right foot. Unless you can significantly improve the power to weight ratio of the vehicle by shedding weight. Before you go too far you might want to consider the cost of your ...

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