Your Fuel Efficiency?

[prwood]

Just curious what fuel efficiency numbers folks in this forum are getting from their P2 Volvos?

[abscate]

My 2005 NA Manual trans gives an easy 30 mpg mixed, and 33 mpg at 70mph on my last highway trip

[jonesg]

29mpg. Mostly hiway.

[oragex]

Non turbo, on highway around 35mpg but we drive at 65-70mph here in Canada so lower than the speeds in the US, in city/residential area packed with stops/lights, more like 18

[prwood]

My 2001 V70 2.4T tends to get around 18 mpg city / 22 mpg highway. Best ever was 24 mpg on a nearly 100% highway trip.

[mrbrian200]

'06 S60 2.5T FWD. AVG 29, Highway 37-40 depending on speed (faster=lower MPG). I've seen low 40's on a long drive with a moderate tail wind.
--Pirelli P7 LRR tires (narrower 205/55R16), front end camber set at '0'. OE spec calls for negative camber. In my experience/experimentation econ tops out around 35-37mpg with that.
The Pirellis are extremely grabby to lateral forces. Awesome for cornering but considering suspension flare at different speeds/torque conditions you actually want tire characteristics to allow a little bit of slip if you're shooting for a combination of higher fuel economy + ride quality on a daily driver. The Pirellis don't exhibit this characteristic until you reach excessive speeds over 100mph I simply don't go.
When the Pirellis wear out I may try General AltiMax RT43s. That may be awhile. I've got more than 20,000 miles on the current tires and they still look brand new.

[precopster]

How many miles on that S60 2.5T and have O2 sensors less than 100,000 miles?

Our '06 2.5T XC90 struggles to get 13.5L /100 (around 22mpg) with mixed driving which is pretty awful.

[mrbrian200]

105k miles. O2 sensor was replaced at 85k. NGK/NTK. Bosch is also fine for a replacement, however. I read some tech banter somewhere that Bosch has fallen a little behind some other industry players regarding the longevity of their O2 sensors. Both parts test identical when new, the NGKs supposedly maintain fast response times / last longer.

Regarding the XC90 my sister has an '03 AWD. The rear alignment (toe setting) was whack-a-doo when she bought it and dragging her econ down to around what you're seeing. I got it up to around 33mpg on the highway just by adjusting the toe settings back there. But you have to tighten that eccentric bolt higher than OE spec calls or it simply doesn't stay where you put it if you hit a deep pothole or roll into a curb while parallel parking. Because of this I recommend treating that like a torque to yield and replace that bolt anytime you mess with it. IPD used to sell a replacement stay with an integrated screw adjustment that did away with the eccentric bolt for these. The problem was the supplier they used (crap you see from shady vendors peddling highly questionable /slapped together parts at race track flea markets out of their trunk). They weren't OE quality and had problems with welds giving way while people were driving. Had IPD worked with an OE SUPPLIER to get these made they would have been good. I'm holding out hope someday DOORMAN products might someday come out with an adjustable stay arm under their problem solver line. They do work with OE quality suppliers. What would probably work great back there would be the equivalent of the cloud cars' rear OE quality lateral link, but with different ends welded on. The Chryslers integrate the bushing into the lateral link, whereas the Volvos put the bush into the subframe and the link/stay arm bolts over it.

[Georgeandkira]

Re my 2002 V70 non-turbo automatic (taken from a sample of 61 consecutive months)
All figures are honestly usable in conversation. ex. "26-29 mpg" = 26.01-29.99 mpg)

30.00 mpg in a month NEVER (maybe I should add a bottle of "Slippy-Goo")
26-29 mpg 18 times (warm month mixed driving)
24-25 mpg 23 times ( " )

22-23 mpg 4 times (local/suburban driving months)
<21 mpg 2 times (ultra low mileage-Winter months aka BAD DATA)

Once on a roundtrip upstate a low pressure system pushed me both ways and I saw >35mpg (isolated data)
Heaven only knows what I'd get in town (NYC)

Green light-3,800 lbs. to "inertiaize" = LOW mpg.

[jonesg]

Some guys like the bigger wheels, in that case a mile is not a real mile.
Transmission adaption programming may play a role if it adapted itself for an aggressive driver.
AWD gets less than FWD due to drivetrain friction.

Plus the tires and aligment as Mr Brian posted.

Theres parasitic drag too, Roof racks? belly pan? AC running? window open?
I'm happy where mine is.