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Ok so I've been driving my RS an have notice a decrease in my fuel mileage an don't understand why. I know that I'm over due for an oil change, so I'm getting ready to do that on Saturday was wondering what else I could check, change or improve on the car. Thanks for the help..
When was the last time you changed the plugs and air filter?
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Just did plugs an wires a few months ago an I have an aftermarket intake on the car.
Strange. How bad is the oil?
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Havent. Checked yet.
How many miles you have on it?Originally Posted by BlkanBlue02RS
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138000
On the oil?
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I hope there isnt that many miles in between oil changes, definitly not good. Other things that can contribute to lower MPGs is tire pressure, if tires are lower on pressure takes more to rotate them, low grade gas, and dirty fuel system run some sea foam in a tank of gas. In addition to these items the oil change should help some.
No not on oil. I know how to take care of my cars. I'm like two months or so over due for my oil change. I ran some Lucas fuel additive an I add Lucas oil additive every oil change. Doing my change on Saturday, I use Mobil one high mileage for oil with a Mobil one filter. Any others suggestions for oils will always be looked at. Thanks.
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