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Old 11-21-2003, 02:34 PM   #1
Lantec
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Default what do you put in your subaru?

Regular? Plus? or Premium?? Just wondering...
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Old 11-21-2003, 02:56 PM   #2
AllWheelDrift
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Here we go again.

I'm stock and NA, so I use 87 octane just like the owners manual calls for.
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Old 11-21-2003, 02:58 PM   #3
quest
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only put in the higher octanes if you are running a turbo...otherwise go with the cheap stuff
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Old 11-21-2003, 03:00 PM   #4
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oh..... so putting 91 octane in my RS won't help much eh? doh
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Old 11-21-2003, 03:14 PM   #5
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http://www.caranddriver.com/article....rticle_id=3604

Quote:
Our tests confirm that for most cars there is no compelling reason to buy more expensive fuel than the factory recommends, as any performance gain realized will surely be far less than the percentage hike in price. Cheapskates burning regular in cars designed to run on premium fuel can expect to trim performance by about the same percent they save at the pump. If the car is sufficiently new and sophisticated, it may not suffer any ill effects, but all such skinflints should be ready to switch back to premium at the first sign of knock or other drivability woes. And finally, if a car calibrated for regular fuel begins to knock on anything less than premium or midgrade, owners should invest in a tuneup, emissions-control-system repair, or detergent additives to solve, rather than bandage, the root problem. Class dismissed.
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Old 11-21-2003, 03:21 PM   #6
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yeah but the last 3 cars I have had including the new subie all knock when 87/89 is put in and mileage does suffer (all cars were new) - I keep track of mileage per tank each time I fill and I know this for a fact so I drive with 91/92 and sometimes for fun I'll put in 94 (rarely).

my 2 cents

daniel
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Old 11-21-2003, 03:21 PM   #7
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Quote:
Originally posted by AllWheelDrift
http://www.caranddriver.com/article....rticle_id=3604

cool thnx... RS gets 87 now
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Old 11-21-2003, 03:23 PM   #8
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Quote:
Originally posted by superhero
yeah but the last 3 cars I have had including the new subie all knock when 87/89 is put in and mileage does suffer (all cars were new) - I keep track of mileage per tank each time I fill and I know this for a fact so I drive with 91/92 and sometimes for fun I'll put in 94 (rarely).

my 2 cents

daniel

Hmmm....
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Old 11-21-2003, 03:28 PM   #9
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Any NA 2.5 should be fine running 87...if you are runnin ga lot of aftermarket parts and the car starts pinging then go up in octane until it stops. Otherwise you are just wasting your money.
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Old 11-21-2003, 03:56 PM   #10
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tora pisses in ppl's gas tanks when they're not looking anyways... at least those ppl who don't buy a locking gas cap for their Subaru.
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Old 11-21-2003, 04:17 PM   #11
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94 or no drive at all






.. unless tora pisses in it... his piss = octane booster
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Old 11-21-2003, 04:35 PM   #12
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Quote:
Originally posted by Ken
tora pisses in ppl's gas tanks when they're not looking anyways... at least those ppl who don't buy a locking gas cap for their Subaru.

!!!!!!
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Old 11-21-2003, 06:22 PM   #13
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yup only 94 ,my car used to knock with lower grades of fuel
and I dont put a lot of miles on ,so its worth it for me
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Old 11-21-2003, 06:56 PM   #14
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Quote:
Originally posted by 4wheelflyer
yup only 94 ,my car used to knock with lower grades of fuel
and I dont put a lot of miles on ,so its worth it for me
is yours NA?
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Old 11-21-2003, 07:15 PM   #15
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Why do turbo'd cars need higher octane? Is it for only when it's on boost? Because when they are not, they have pretty low compression ratios. I have been putting 89 in our WRX without any knocking......should I up to '91?
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Old 11-21-2003, 07:25 PM   #16
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not sure why some N/a guys are finding that they need to put in 91; i used to put that in too when i first had my car but for my gc8 really unnecessary and really bloddy expensive. I don't see why it's necessary to put higher octane in unless u've done some significant engine mods (cams, heads, safc, etc). If you do a search Lantec you'll see quite a few threads on this over the past two years - most subaru n/a guys put in 87.
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Old 11-21-2003, 07:32 PM   #17
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Quote:
Originally posted by 2wheelsx2
Why do turbo'd cars need higher octane? Is it for only when it's on boost? Because when they are not, they have pretty low compression ratios. I have been putting 89 in our WRX without any knocking......should I up to '91?
even the manual says 91octane minimal for a wrx dude...

you will start using 93/94 when you mod it.
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Old 11-21-2003, 08:19 PM   #18
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94 or bust
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Old 11-21-2003, 08:30 PM   #19
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Mine drinks up the 87-go juice. Runs fine.

She pings a bit in the summer, but that's okay. It's a normal condition - especially when the temperature is hot and I get lazy with the shifter and lug the engine, which I shouldn't be doing anyway - lugging the engine that is.

LaterZ!
Darren!!
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Old 11-22-2003, 03:21 AM   #20
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Quote:
Originally posted by Reckon
not sure why some N/a guys are finding that they need to put in 91; i used to put that in too when i first had my car but for my gc8 really unnecessary and really bloddy expensive. I don't see why it's necessary to put higher octane in unless u've done some significant engine mods (cams, heads, safc, etc). If you do a search Lantec you'll see quite a few threads on this over the past two years - most subaru n/a guys put in 87.
ah... yeah cause my last car was a Volvo 960 and that takes "91 or higher"(said in the manual) and since gas is paid for by my parents, just got into habit but then I realized this.... so... 87 then?
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Old 11-22-2003, 12:55 PM   #21
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I'd swear the WRX owner's manual states '90' for the octane? Are you sure about the 91?
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Old 11-22-2003, 01:07 PM   #22
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Quote:
Originally posted by Happy_Days
94 or no drive at all

Me too, unless there are no Chevrons or Petro Can's around. Only then 91 will do.
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Old 11-22-2003, 01:09 PM   #23
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Quote:
Originally posted by 2wheelsx2
I have been putting 89 in our WRX
You disgust me.
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Old 11-22-2003, 01:11 PM   #24
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Quote:
Originally posted by 420WRX
I'd swear the WRX owner's manual states '90' for the octane? Are you sure about the 91?



Hypa:

after you get an ECU or some sort ofengine management upgrade , you will probably need atleast 93 octane.. or it may ping
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Old 11-22-2003, 02:19 PM   #25
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Well I do a crapload of driving for work so my boss lets me fillup for free and the best I can get from his gas station is 92 octane. It's either that or 89, and I didn't want to be constantly running injector cleaner at every single oil change or adding daily octane boosts.. Oh and I wouldn't run my WRX on crap gas purely out of principle, if I was that broke I'd sell it and buy a rust-tang.
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