How can I get better MPG?
How can I get better MPG?
I have a 98 V70 Wagon and I used to average 24-26mpg in the city. Now it has dropped down to near 18mpg. I've replaced the spark plugs and changed the oil. What else can I do to get back up to 25 mpg? I'm about to replace the ABS module. Will that help?
Last edited by jblackburn on 17 Apr 2013, 20:57, edited 1 time in total.
Reason: title
Reason: title
-
jblackburn
- MVS Moderator
- Posts: 14043
- Joined: 8 June 2008
- Year and Model: 1998 S70 T5
- Location: Alexandria, VA
- Has thanked: 9 times
- Been thanked: 19 times
Check engine light on? Does the exhaust smell like it's running rich (sulfur-like)?
Start off by checking for vacuum leaks and cleaning the mass airflow sensor. Change the filter. When was the last time it had a tune up (rotor, cap, wires?)
Most importantly: are you driving the same route that you used to? I have NEVER gotten 24-26 MPG city. That's more combined 30/70 city and highway for an S70.
Start off by checking for vacuum leaks and cleaning the mass airflow sensor. Change the filter. When was the last time it had a tune up (rotor, cap, wires?)
Most importantly: are you driving the same route that you used to? I have NEVER gotten 24-26 MPG city. That's more combined 30/70 city and highway for an S70.
'98 S70 T5
2016 Chevy Cruze Premier
A learning experience is one of those things that says, "You know that thing you just did? Don't do that."
mercuic: Long live the tractor motor!
2016 Chevy Cruze Premier
A learning experience is one of those things that says, "You know that thing you just did? Don't do that."
mercuic: Long live the tractor motor!
-
FlyingVolvo
- Posts: 1822
- Joined: 8 March 2009
- Year and Model: 2000 V70XC
- Location: USA
- Has thanked: 51 times
- Been thanked: 73 times
The ABS module should have no effect on MPG. Have you diagnosed the module as faulty? If not, no reason to replace it. As Justin said, try all the little stuff first. Check your tire pressure (slightly higher side for more MPG).
2000 V70XC - 340,000 miles
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses
2023 V60 T8 PE
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses
2023 V60 T8 PE
-
rspi
- Posts: 7303
- Joined: 5 November 2011
- Year and Model: 850 T-5R Wagon
- Location: Cincinnati OH
- Has thanked: 34 times
- Been thanked: 72 times
-
Contact:
Contact rspi..
Old o2 sensors will cause a drop in mileage.
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
--------------------
Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
--------------------
Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos
O2 sensors are only about a year old. Check engine light is on. the codes off of my reader are P0455 EVAP Evaporation control system leak (Large), and P0410 secondary air injection system malfunction. The ABS module is faulty. I'm replacing that soon. (The ABS light and TRACS OFF light have been on and off for a while and sometimes when I press the brake petal it acts weird... like a vibration in it.) And yes I have been driving the same route.
-
- Similar Topics
- Replies
- Views
- Last post