IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models
View Poll Results: What kind of gas do you use?
91
548
41.70%
92
68
5.18%
93
612
46.58%
I'll put anything in there CHEAP!
86
6.54%
Voters: 1314. You may not vote on this poll

The mother of all 2IS gas discussions. Premium or Mid-grade (merged threads)

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Old 09-11-09 | 11:40 AM
  #736  
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Only put Shell 93 in mine. My life time average is 18mpg but I do lotta local
Old 09-11-09 | 11:42 AM
  #737  
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Arco or Costco (occasionally Rotten Robbie)
Old 09-11-09 | 11:55 AM
  #738  
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Mainly Shell, 76 and Chevron.
Old 09-11-09 | 01:10 PM
  #739  
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I like to use Shell or Chevron
Old 09-11-09 | 01:22 PM
  #740  
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Originally Posted by CRB
Arco or Costco (occasionally Rotten Robbie)
How's that Arco treating you?
Old 09-11-09 | 01:26 PM
  #741  
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so many gas and oil threads... SEARCH is your friend...

Old 09-11-09 | 01:30 PM
  #742  
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Search takes too much work! JK lol ^^
Old 10-28-09 | 09:03 PM
  #743  
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Default Gasoline to put on IS250

I know the IS recommends premium fuel.. is it still ok to use regular fuel??? Is that going to have any affect on the engine performance?
Old 10-28-09 | 09:05 PM
  #744  
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umm if you search. yes you can. but we use premium cause it's better! lol i paid 50 bucks for a tank today...
Old 10-28-09 | 09:36 PM
  #745  
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You can put whatever you like. But I use premium fuel. IMHO, I figure you might as well use the best for the IS, considering the price you paid for it. A few more dollars difference between premium and regular is not that big of a deal.
Old 10-28-09 | 10:00 PM
  #746  
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The compression level is very high on the 250, 12 to 1. Use premium, it's only three bucks a tank more.
Old 10-28-09 | 10:04 PM
  #747  
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i always use premium. doesn't it say in the manual?
Old 10-28-09 | 10:28 PM
  #748  
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dude
Old 10-28-09 | 11:05 PM
  #749  
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search there are a ton of topics about this but use 91+ anything less could cause some knocking....
Old 10-28-09 | 11:07 PM
  #750  
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Use premium



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