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Old 04-27-2009, 02:05 PM   #1
t3hWIT
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Legacy Legacy 3.0R and fuel grades

My parents are looking to trade in their 2001 Camry V6 and I've been suggesting they consider a 2009 Legacy. Being used to the power of the V6, they found the 2.5L Legacy to be a bit weak so I told them to look into the 3.0R.

In their eyes, the biggest turnoff in this is that Premium fuel is "recommended."

My parents each work about 60 miles from our home so, as you can imagine, they spend quite a bit of money a year on fuel. While premium fuel may offer the best performance, they are willing to trade a bit of that for savings at the pump.

My questions is related to key word, "recommended" and not "required." I work at a Nissan dealership, and different terminology is used on different models. The 370Z requires premium fuel, while it is simply recommended for optimum performance for the new Maxima.

Subaru also uses similar terminology between the 2.5 turbo models and the 3.0. That said, besides a decrease in performance, will there be any long term side effects with consistently using 87 or 89 octane with the H6? I'm not too familiar with Subaru's 6 cylinder engines, but I would assume that the ECU compensates for poor quality fuel.


C/N: Read the bold print.

Please refrain from questioning the intelligence of my parents. They are not car people, nor cheapskates, they just don't want to spend the extra 30-40 cents a gallon on premium fuel when it is not necessary.
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Old 04-27-2009, 02:59 PM   #2
Lord Grippington
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I've noticed this too, because I read an article about the re-designed tribeca, boasting a more-powerful, more economical 6cyl engine, that now ran on regular fuel. That being said, the legacy six's are still listed as taking the higher grade fuel and thusly it's probably advisable to run that fuel. Not super-helpful I know, but I had investigated the same thing.
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Old 04-27-2009, 09:51 PM   #3
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I would only put Premium in the 3.0R.

HOWEVER, the 2010 Legacy will have the 3.6R which is the redesigned Tribeca motor which runs just fine on regular gas. I'd recommend that if I were you (they should be arriving this summer)
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Old 04-27-2009, 10:05 PM   #4
t3hWIT
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I just talked to my dad again, and hes quoted the brochure as saying that while premium fuel is recommended, you can still use the low-octane fuel and just suffer a decrease in performance.

Which answers my original question, but insight is still appreciated.
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Old 04-27-2009, 10:12 PM   #5
chazly413
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Um, it should be fine, it'll just decrease performance as it'll pull timing. I don't know how it'll affect the health of the engine (if at all) over the long term, though.
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Old 04-27-2009, 10:21 PM   #6
Evil XT
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It'll be fine if he wants to here pinging all day long. These come into the shop all the time... Recommend 2010 3.6
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Old 04-27-2009, 10:53 PM   #7
Burnout
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Quote:
Originally Posted by Evil XT View Post
It'll be fine if he wants to here pinging all day long. These come into the shop all the time... Recommend 2010 3.6
What he said. Use premium with the 3.0 or wait for the 3.6 and use regular. My dispatchers wife has a OB 3.0 and ran regular in it, he said the gas mileage decreased and performance suffered noticeably.
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