Premium Fuel Required?

Asked by Feb 07, 2008 at 12:15 AM about the 2004 Subaru Outback H6-3.0 L.L. Bean Edition Wagon

Question type: General

I am thinking of buying one of these wagons. My question is: Does this vehicle require premium fuel? Or is it just recommended?

6 Answers

75

In europe its recommended to use 95 octane fuel, it should be similar in us. premium fuel has 94 octane, regular fuel has 89. since modern cars have knock sensors, you should be able to run the car with regular, but with (noticeably) less power and higher fuel consumption. and it COULD still harm the engine. the subaru's engine has a compression of 10.7:1, so it would be advisable to use premium.

3 out of 3 people think this is helpful.

regular will be fine.

45

been using regular for 3.5 years. no problem whatsoever. I've used premium a few times and could not tell a difference.

1 out of 1 people think this is helpful.

I ran my WRX in the UK on Super Unleaded (98-102 octane) and when dyno'd it had an extra 20bhp at the top end over regular unleaded (95 octane). Any 200bhp+ Subaru likes high octane fuel - you only notice a difference after a few consecutive tankfuls - but as Super Unleaded is £5.60 a gallon (I think that's around $11), I've gone for something more economical now!! : )

165

since that car is NA you can run reg in it with no issues. you will not get less MPG or hurt it. also, once you get it, you can look in the owners manual or in side the gas door Shane

4 out of 4 people think this is helpful.
20

One thing all these experts ignore is as altitude increases the octane requirement decreases. A vehicle in Denver CO doesn't have the same octane requirements that a vehicle in LA does. The manufacturer assumes rightly that most people don't understand so he puts the sea level requirements in the manual.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Outback

Looking for a Used Outback in your area?

CarGurus has 26,614 nationwide Outback listings starting at $500.

ZIP:

Search Subaru Outback Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 5,270
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,600
#3 FordNut
FordNut
Reputation 1,490
View All

Related Models For Sale

Used Subaru Forester
303 Great Deals out of 21,958 listings starting at $1,290
Used Subaru Impreza
169 Great Deals out of 11,163 listings starting at $1,899
Used Subaru Legacy
212 Great Deals out of 15,231 listings starting at $950
Used Honda CR-V
884 Great Deals out of 63,754 listings starting at $1,100
Used Toyota RAV4
750 Great Deals out of 55,167 listings starting at $2,488
Used Toyota 4Runner
379 Great Deals out of 20,766 listings starting at $2,495
Used Toyota Highlander
578 Great Deals out of 22,627 listings starting at $2,944
Used Toyota Tacoma
733 Great Deals out of 31,913 listings starting at $2,750
Used Jeep Grand Cherokee
939 Great Deals out of 66,509 listings starting at $300
Used Honda Accord
987 Great Deals out of 75,076 listings starting at $899
Used Subaru Impreza WRX
49 Great Deals out of 1,140 listings starting at $1,500
Used Honda Pilot
508 Great Deals out of 18,416 listings starting at $950
Used Toyota Camry
1,212 Great Deals out of 96,014 listings starting at $1,250

Used Cars For Sale

2017 Subaru Outback For Sale
18,153 listings starting at $23,920
2016 Subaru Outback For Sale
42 Great Deals out of 961 listings starting at $20,995
2015 Subaru Outback For Sale
77 Great Deals out of 1,189 listings starting at $15,000
2014 Subaru Outback For Sale
55 Great Deals out of 1,428 listings starting at $9,995
2013 Subaru Outback For Sale
42 Great Deals out of 1,008 listings starting at $9,770