Performance/Mileage Enhancement

**aileron** · 08-25-2009, 07:23 PM

Restriction gauge??? LOL

**guido4475** · 08-25-2009, 07:50 PM

Originally Posted by aileron

Restriction gauge??? LOL

Okay, cupcake, You know what I mean.LOL.

**highway star** · 08-26-2009, 01:03 PM

Guido, I went about 20k on a pair of filters in my 7.3. I had my oil changes done at the local Pennz shop and used their filters. They were only slightly more that what Murray's charged.

**RLENT** · 09-02-2009, 05:25 AM

Originally Posted by OntarioVanMan

My tech told me to never believe that little gauge on the filter box..it is a cheap toy..*L*

LOL .... yeah ..... toy ..... your tech needs sent over to the Vaterland for a little specialized instruction - and some massive discipline - from Dieter and his monkey ..... Doctor Z would not be pleased:

Mein Gott im Himmel - Ketzerei !!!

Originally Posted by OntarioVanMan

..always do a visual check and keep it clean as possible especially vacuuming the sand and gravel from the bottom of box...

A visual check may well tell you little to nothing - a filter which appears to be dirty may flow & filter just fine, and one which appears relatively clean may be significantly restricted. Use the gauge - that's why it is there.

On the vacuuming the filter box, dunno about yours but I believe mine has a dust unloader for the large stuff (like my Kubota tractor) ..... just remember - every time you open that housing and futz with the filter is one more chance to fail to get it properly seated ..... and allow dust a chance to get in the motor.

My current air filter is at 85K miles and counting ...... and it hasn't been out since put it in - back I replaced the original filter at 120K miles .....

**Jack_Berry** · 11-20-2009, 02:45 PM

here is a fuel mileage enhancement you might want to try.
slow down.

we are keeping the rpm under 2000 when accelerating from lights. hill climbs may rise to 2500 but still in overdrive not third, we have reduced speed from 63 to 57. that is on the gps and 65 and 60 on the speedo. we have gone from high 16's to mid 17's with a few recent legs of mid 18 and a couple over 20

just can'tget to leo's 19mpg.

**LDB** · 11-20-2009, 04:50 PM

My 19 was mostly empty, about 97% interstate, all flat except freeway overpasses and using cruise control to hold 60mph. I just delivered in FL. and ran about 63-65 the whole way and had about 86-88% interstate and a few hills. I got 17.9 so everything factors in. My spreadsheet figures my numbers at 16mpg so I figure I'll usually always at least make my numbers.

**JBCarroll** · 11-21-2009, 11:50 AM

My suggestion is to switch to synthedic oils, lubes, etc. Get a high proformance air filtration system. Have a turbo muffler installed. Other than that ( retrain your right foot ).

**guido4475** · 11-21-2009, 12:03 PM

That is what I am going to do-Put a larger high-performance exchaust on,free-flowing muffler,Change the fluids to sytnthetic,except the engine, for now.I dont want to jinx it not using any oil at all.Not even a seep.Tires are kept at 80 all around.And cruise control needs to be installed as well.I know that slowing down does improve mileage, but I cant drive 55, as Sammy Hagar sang about.There has to be a happy medium.Changing rear-end gears to drop rpm's at highway speeds to achieve better mileage?A freind and I are talking about that now, to determine the perfect gear ratio for both worlds.I have been averaging between 15.5 and 16.6 running at 70 loaded, empty.It could be better, I know.

**highway star** · 11-21-2009, 12:55 PM

Your mileage is low Guido, based on what i got with mine. At 70, I'd still be between 18 and 19. Most of the time I was at 20-21, the best ever being 23. I'd say the first thing is to look at the rear end.