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Posted: 2/21/2017 7:58:39 AM EDT
[#1]
Correct, due to the elevation you should be able to run the 85.
I run it in all my cars and was able to run the 87/89 in the WRX I drove for work, it called for 91 You can try filling up with 85 when you are at a 1/2 tank if you have concerns, listen for pinging/knocking under heavy acceleration, if you don't hear any, try a full tank. If you do then add a bottle of octane boost and use the next grade up when you fill up next. |
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Posted: 2/21/2017 10:11:51 PM EDT
[#2]
Most vehicles are good to go. Larger trucks, high performance....may need 87 or 91. Also, make sure that you don't void any warranty by using lower than recommended octane.
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Posted: 2/22/2017 12:59:16 PM EDT
[#3]
i've been living here my whole life, had all kinds of cars, trucks and motorcycles from the 60s to current. I never, and I mean never buy the expensive stuff. I always buy regular.
The cars work just fine. Just use regular. it's fine |
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Posted: 2/22/2017 9:30:09 PM EDT
[#4]
Went through the same thing. I grew up in the midwest, at an altitude in the low three digits and driving a GMC that wanted 87,
Then I moved here and ran 85 without a hitch, without having to do anything at all. |
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Posted: 2/23/2017 1:44:05 AM EDT
[#5]
Quote HistoryQuoted:
Correct, due to the elevation you should be able to run the 85. I run it in all my cars and was able to run the 87/89 in the WRX I drove for work, it called for 91 You can try filling up with 85 when you are at a 1/2 tank if you have concerns, listen for pinging/knocking under heavy acceleration, if you don't hear any, try a full tank. If you do then add a bottle of octane boost and use the next grade up when you fill up next. This. Due to elevation, 85 here is equivalent to 87 at lower elevations. |
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Posted: 2/26/2017 7:28:04 PM EDT
[#6]
Yep, 85 should be fine due to the lower compression ratios in your engine because of the altitude. Now, if you run a turbocharger, it might not work as your turbo can probably compensate for the lower density altitude.
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