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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHX51 Power Kit option w Calif gas??
Leading reported evidence
Check <a href="http://www.76.com/cgi-bin/b2cpt01/scripts/mapquery.jsp" target="_blank">76 station locator
Performed · outcome unconfirmed
No successful repair reported for this finding.
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0
Unsuccessful attempts
1
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed
Keith, I checked the <a href="http://www.76.com/cgi-bin/b2cpt01/scripts/mapQuery.jsp" target="_blank">76 Station Locator on their website</a> and there unfortunately does not appear to be any stations selling 100 octance gas within 20 miles of Sacramento.
Leading evidence: 'Check <a href="http://www.76.com/cgi-bin/b2cpt01/scripts/mapquery.jsp" target="_blank">76 station locator' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust lower octane (within reason)' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
The car will adjust for lower octane (within reason).
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
Porsche engines are tuned to run optimally on 93 octane pump gas regardless of the X51 option.
Check <a href="http://www.76.com/cgi-bin/b2cpt01/scripts/mapquery.jsp" target="_blank">76 station locator
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Keith, I checked the <a href="http://www.76.com/cgi-bin/b2cpt01/scripts/mapQuery.jsp" target="_blank">76 Station Locator on their website</a> and there unfortunately does not appear to be any stations selling 100 octance gas within 20 miles of Sacramento.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Wonder if the x51 motor option would be effective with Calif's poor gas. If the computor is just going to retard the spark to compensate it could just be a waste. I would hate to invest $13k if I could just get more proformance by buying a can of octain boost. ??????
Gas is Gas
Here in CA we have 91
Just finished a 13 state road trip and what did I get, 91, except for a few BP/Amaco @92...in the midwest even got 10% ethanol...
In all cases the car ran fine and 25mpg ta boot
02C2
I blend in 3-4 gallons of 104.5 octane unleaded to a tank of 91 fairly often. It makes a difference you can feel, and interestingly, hear at WOT. Stock 3.4L motor, by the way.
Not a gross difference, mind, but probably consistent with a recent R&T (or was it C&D?) article, where I recall they figured an M3 was losing about 8bhp to crappy octane.
So that is about $12-14 extra per tank, about what a good cigar costs. Be a bit wary of octane boosters, the ones that work do so only slightly and leave a lot of residue.
[quote]Originally posted by KeithC2Turto:
<strong>Wonder if the x51 motor option would be effective with Calif's poor gas. If the computor is just going to retard the spark to compensate it could just be a waste. I would hate to invest $13k if I could just get more proformance by buying a can of octain boost. ??????</strong><hr></blockquote>
If you are worried about the low octane, the car will detune itself for 91-92 octane regardless of X51 status. If you are worried about wasting 13K, then don't get the X51 regardless of gas. For 13K (I thought it was $15K?), you only get 25 HP more than the std 320 HP, but still have the same torque. Porsche X51 sounds good, though.
Like Nick, I too blend my gas and I can definitely feel the difference. I am fortunate that there is a 76 Station a mile from my home that sells 100 octance racing fuel. Keith, I checked the <a href="http://www.76.com/cgi-bin/b2cpt01/scripts/mapQuery.jsp" target="_blank">76 Station Locator on their website</a> and there unfortunately does not appear to be any stations selling 100 octance gas within 20 miles of Sacramento. Nevertheless, you should review the list of all 76 stations in California selling 100 octance -- there might be one accessible to you. Otherwise, there might be some other station selling higher octance gas.
Good luck!
Craig (L.A.)
The car will adjust for lower octane (within reason). As for the X51, I love it and think it was worth every penny. Depending on how you drive it, it may or may not for you. If you track the car, its a definite, if you are a 'normal' (read tame) daily driver, not worth it.
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