1997 850 T5 fuel economy

850TurboTurtle · Post by **850TurboTurtle** » 09 Oct 2015, 22:51

I did a new head gasket a year ago. I'm getting about 28 on freeways at 65mph, and about 19 in town, sometimes 21, sometimes 17 depending on how much I keep the Fun Switch engaged (sport mode).

Post by **abscate** » 10 Oct 2015, 05:02

The high pressure turbo really eats gas once the boost comes on. My 1999 on highway

70 mph 25 mpg
60 mph.27 mpg
50 mph. 31 mpg

Prii never fit anywhere for me. I would never drive one on a freeway due to poor crash protection, they suck in winter, and around town I ride my bike.

Post by **FLXC90** » 12 Oct 2015, 06:13

The other item that can deteriorate mpg slowly without throwing a code is your O2 sensors. They will degrade slowly for a long time, and the ECU compensates as long as it can before coding.

Scholz · Post by **Scholz** » 12 Oct 2015, 14:44

Two weekends ago I ran my 98s70T5 208 miles south on interstate 5 from Portland. 30.3mpg with an average speed of 79. My work commute is .8 miles each way and after a week of that my mpg is 17 or so because of stop and go traffic. All of this according to the onboard display of course.

Seaway · Post by **Seaway** » 13 Oct 2015, 08:59

I have a heavy foot and my 1998 T5M gets about 16mpg in city only driving. When it is highway only I see closer to 27mpg.

jenkinskg · Post by **jenkinskg** » 13 Oct 2015, 11:00

my 2004 t5 c70 gets about same, with wife driving on long trip using cruise we got 29mpg for 333 miles

otherwise with my lead foot turbo loving , 16mpg

TrstnBrtt · Post by **TrstnBrtt** » 20 Oct 2015, 12:18

My 1998 T5 Auto gets me about 19 combined - low 30s on the highway makes that average higher though. Roof racks with Bike carrier probably don't help but I don't have a cat on my car.

Post by **mecheng** » 21 Oct 2015, 09:44

98 T5

I get around 11L/100km or 21mpg mixed, but mainly city

On the highway, I get 7L/100km or 33mpg

Considering the vintage and power, it is nothing short of amazing. The EPA numbers are way low. With my 96 Prelude VTEC, and 94 Integra (non VTEC), the highway gas mileage was no better. For the Prelude it was slightly worst.

Brahms · Post by **Brahms** » 21 Oct 2015, 09:56

I have a 96T5, in pretty fine mechanical shape now. It has a short ram intake and a mild ARD tune, I run high octane only, right now my dash computer pegs it at 18.3 in town, and not moving from that. I drive somewhat aggressively with some occasional drift when I can.

All things considered for a car with this power, this heavy, and this large I think 18.3 in city is pretty darn good. I hear people with new cars, (not efficiency cars grant you) that are barely getting that, and sometimes worse. And this car has a backseat with legroom too.

1997 850 T5 fuel economy

95 850T getting 19/28