heep70 Posted December 30, 2004 Share Posted December 30, 2004 My gas milage fluctuates from 24mpg to 29mpg traveling the same trip (280 miles). It is a carbed (weber) 1.8 86 wagon. I don't drive like a mad man, that is impossible with this subaru. I pretty much drive the speed limits. It has a hard enough time topping 75mph unless it is pointed down hill. Any thoughts? Link to comment Share on other sites More sharing options...
Vanislru Posted December 30, 2004 Share Posted December 30, 2004 Maybe a small vac leak/intermittent? Do you have a vaccum gauge, what kind of shape is the pcv system in? Link to comment Share on other sites More sharing options...
WJM Posted December 30, 2004 Share Posted December 30, 2004 possible its differences in temp/air density that does it. I know that with my RX its happened. One time I got 29 going to Atlanta from Charlotte. Same trip later in the month...25. Link to comment Share on other sites More sharing options...
heep70 Posted December 31, 2004 Author Share Posted December 31, 2004 I was leaning towards a vac leak. When I press the brake the engine runs different at idle. The PCV system is clear but not stock. I plan on pulling all my suspension and drive train out and putting it in another Subaru in January. Then I will check for leaks. Anything else? Link to comment Share on other sites More sharing options...
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