ehlersgrub Posted February 19, 2009 Share Posted February 19, 2009 I’ve read a number of threads about premium vs. reg gas but I still have a couple questions. I have a 2008 GT turbo. If I remember looking at past brochures they state that premium gas is recommended but starting with 2008 it states premium is required. I don’t believe the engine specs are different from 2007 to 2008. I don’t believe there should be an issue except a slight loss of power. Comments? I have also seen some threads on getting better gas mileage with premium. Is there any hard data or experiences on this? Thanks. Link to comment Share on other sites More sharing options...
rao Posted February 19, 2009 Share Posted February 19, 2009 OMGWTFBBQ :spin: Rob IF YOU CARE ABOUT YOUR CAR YOU SHOULD NEVER DRIVE IT Link to comment Share on other sites More sharing options...
boosten-n-bluntin Posted February 19, 2009 Share Posted February 19, 2009 ^ +1 one word preignition Link to comment Share on other sites More sharing options...
05GT Guru Posted February 19, 2009 Share Posted February 19, 2009 I’ve read a number of threads about premium vs. reg gas but I still have a couple questions. I have a 2008 GT turbo. If I remember looking at past brochures they state that premium gas is recommended but starting with 2008 it states premium is required. I don’t believe the engine specs are different from 2007 to 2008. I don’t believe there should be an issue except a slight loss of power. Comments? I have also seen some threads on getting better gas mileage with premium. Is there any hard data or experiences on this? Thanks. USE PREMIUM, it gives you more than just power. If you dont wanna pay for premium give me your car and i will de-turbo mine and give it to you. Then we are all happy Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 19, 2009 Share Posted February 19, 2009 OMGWTFBBQ :spin: And dude, WTF!?!? Pony up the extra 10 cents a gallon. Unreal. Link to comment Share on other sites More sharing options...
mikeislord Posted February 19, 2009 Share Posted February 19, 2009 Detonation is fun! Link to comment Share on other sites More sharing options...
05GT Guru Posted February 19, 2009 Share Posted February 19, 2009 Detonation is fun! This post makes me lauch because as i read i think of your avatar talking to me and saying it. He looks like hes having fun with his detonation Link to comment Share on other sites More sharing options...
mikeislord Posted February 19, 2009 Share Posted February 19, 2009 This post makes me lauch because as i read i think of your avatar talking to me and saying it. He looks like hes having fun with his detonation Link to comment Share on other sites More sharing options...
chongl Posted February 19, 2009 Share Posted February 19, 2009 Knock and bent rods FTW Link to comment Share on other sites More sharing options...
Beanboy Posted February 19, 2009 Share Posted February 19, 2009 Premium has always been required, no Subaru information states otherwise. -B http://www.standardshift.com Link to comment Share on other sites More sharing options...
nemo Posted February 19, 2009 Share Posted February 19, 2009 why again? every thread on this topic comes to the same conclusion: use premium in your GT and stop being a cheap-ass for the extra 10-20c/gallon If you don't vote Trump, out, you're a bigot who hates america. Link to comment Share on other sites More sharing options...
scoobydoobie Posted February 19, 2009 Share Posted February 19, 2009 Oh no not again . What is there a thread like this every week? If the extra $2-$3 per TANK is an issue for you, you should not be driving a Legacy GT. Link to comment Share on other sites More sharing options...
ehlersgrub Posted February 19, 2009 Author Share Posted February 19, 2009 Hey Beanboy. Check out the fuel requirment for the turbo in the specs and then tell me your sorry. I couldn't open the 2007 but I'm sure I remember it's the same. https://www.subaru.com/content/downloads/pdf/brochures/2006_legacy.pdf Link to comment Share on other sites More sharing options...
mikeislord Posted February 19, 2009 Share Posted February 19, 2009 If you keep the car out of boost, you could theoretically drive safely on a lower octane of gas. (But if that's the case, why get a GT over a 2.5i?) No guarantees on longevity though. Otherwise, I would anticipate knock, loss of power/mpg, premature engine failure. If you are still looking towards doing this, the Cobb AP comes with a low octane map that flashes a safer tune for low octane gas that I'd look into. When it really comes down to it, that's a whole lot of trouble for a basically brand new car. Link to comment Share on other sites More sharing options...
wrxvt Posted February 19, 2009 Share Posted February 19, 2009 read your owner's manual. Marketing brochures are not owner's manuals. oh, and you are utterly retarded for trying to put regular in your LGT to try and save a few bucks a month. Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 19, 2009 Share Posted February 19, 2009 read your owner's manual. Marketing brochures are not owner's manuals. oh, and you are utterly retarded for trying to put regular in your LGT to try and save a few bucks a month. Qf teh muthafuckin troof! Link to comment Share on other sites More sharing options...
apexjapan Posted February 19, 2009 Share Posted February 19, 2009 I’ve read a number of threads about premium vs. reg gas but I still have a couple questions. I have a 2008 GT turbo. If I remember looking at past brochures they state that premium gas is recommended but starting with 2008 it states premium is required. I don’t believe the engine specs are different from 2007 to 2008. I don’t believe there should be an issue except a slight loss of power. Comments? There is a very pressing issue with using regular vs. premium in turbocharged legacies, wrx's, and Foresters, and that has to do with detonation. You run a lower octane, and you will run into detonation issues. It may not kill your engine right away, but over time it will. The engine specs are not the reason that they changed from recommended to required, it's because of questions like this that they changed. On Subaru's side, they thought it would be clear that you should run premium at all times unless in an emergency. On the consumer side, some people thought it meant they could run regular if they wanted, whenever they wanted. I'm sure the ensuing warranty claims made them change the language. Detonation isn't an instant kill event for your engine, it's something that will build up in it over time. Hell, even well-tuned engines running premium can have a bit of detonation now and then. Running regular will make it a daily event. Cheers, Paul Hansen http://www.avoturboworld.com Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 19, 2009 Share Posted February 19, 2009 Why are we even entertaining this topic AGAIN!?!?!? Link to comment Share on other sites More sharing options...
skiskank Posted February 19, 2009 Share Posted February 19, 2009 this thread makes my ass ache!!! Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 19, 2009 Share Posted February 19, 2009 That's not the thread. http://smiliesftw.com/x/giggity.gif Link to comment Share on other sites More sharing options...
skiskank Posted February 19, 2009 Share Posted February 19, 2009 Link to comment Share on other sites More sharing options...
mikeislord Posted February 19, 2009 Share Posted February 19, 2009 Why are we even entertaining this topic AGAIN!?!?!? Do you use premium in your car? I put premium in my Honda and vtec kicked in y0000. Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 19, 2009 Share Posted February 19, 2009 No, I use 87 in my LGT... Wait, you're supposed to use premium? Link to comment Share on other sites More sharing options...
mikeislord Posted February 19, 2009 Share Posted February 19, 2009 No, I use 87 in my LGT... Wait, you're supposed to use premium? Nah you're good. You can run it on vegetable oil. Link to comment Share on other sites More sharing options...
ehlersgrub Posted February 19, 2009 Author Share Posted February 19, 2009 Time out guys! I am using premium. I started this thread to get some facts and information after having a discussion with some of my co-workers who have turbos on other cars and thier use of prem/reg gas. Any info on the mileage question? Link to comment Share on other sites More sharing options...
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