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[star_whites]

Ok now I know Im heavy footed and do drive a little too fast but I have noticed that my average consumption around town has dropped to 13.5.

What would the usual faults be to cause the consumption to drop. It had an oil/filter change, fuel filter, air filter, and plugs not long ago (within 3000 miles) so I would have though these should be fine but the drop appears quite dramatic.

I have seen that most people state they should be getting around the 18 mark even with a heavy right foot so suggestion would be good!! 

[tunnie]

i'd check the breathers, spanking the 3.0 around i get 22mpg.

[star_whites]

Thinking about it I do get a slight hunting on tickover, and if I leave it stood running for a long period on tickover after quite some time it will attempt to stall then settle down again and be fine for another 3-4 minutes then try again. Ive checked codes and there are none but I wonder if It could be related.

Whats the best way to get to the breathers??

[tunnie]

Check the maintenance guide section for the guide 

[mathewst]

Also clogged injectors could be the issue.

[star_whites]

Would blocked breathers give a reduction in power as well??

[mathewst]

Don't think so at least not noticeable (not sure) but they woould cause the cam cover gaskets to leak cause of overpresurizing