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I disagree with all that suggest to use the additive!!!!
At my age, My gut is usually correct and btw, Z is usually too!
It took all of 10 minutes to remove the fuel (apx 13 gallons) into 3 - 5 gallon gas containers that I'll use to fill my other vehicles as needed. A quick trip to Mobil or Exxon for 93 and I'm done.
As a Naval Aviator, there are no points for second place!
Mission completed- no fouls or missed points. It doesn't getuch easier or simpler.
Unfortunately, this wonderful device is no longer manufactured. One of the top 100 items I have ever purchased. I needed it to transfer fuel from containers to my sailboas's fuel tank. Yes I have 2 - 1 gas, 1 diesel.
May I suggest to other members, do it right the first time. There is never enough time to do it right the first time, but always enough time to do it right the second time.
Glad you are all set and it worked out for you!
What would you do if you only had crappy 91 octane in your state and your data logs were showing knock retard on a stock motor ?
What would you do if you only had crappy 91 octane in your state and your data logs were showing knock retard on a stock motor ?
Your hands are tied - move, truck in 93 if allowed, .... From my recent investigation, there are no realistic options outside of staying at or above 91 octane. If you have problems at 91, I hate to say it, you may need a permit if even possible to store 93. The Boostane rep didn't mention any problems using their product, but when I confronted him, he said don't worry about the warning in the manual or the reported sparkplug colorization after only 1 tank. Just ignore them. That's not a satisfying answer to me. Sounds like a rock and hard spot situation. I don't have any great answer. Possibly use an additive and realize/monitor/accept the side affects. Good luck.
Your hands are tied - move, truck in 93 if allowed, .... From my recent investigation, there are no realistic options outside of staying at or above 91 octane. If you have problems at 91, I hate to say it, you may need a permit if even possible to store 93. The Boostane rep didn't mention any problems using their product, but when I confronted him, he said don't worry about the warning in the manual or the reported sparkplug colorization after only 1 tank. Just ignore them. That's not a satisfying answer to me. Sounds like a rock and hard spot situation. I don't have any great answer. Possibly use an additive and realize/monitor/accept the side affects. Good luck.
Most people will never know the ECM is pulling timing, however I felt the power loss in my stock LS3. I am hoping when I get a 2021 C8 it will be fine. I will data log and find out.
Enjoy your car! Thanks for all your time posting 2020 C8 daily production numbers! I wonder who will do 2021 production SS?
Last edited by Mike's LS3; Nov 6, 2020 at 11:40 AM.
Most people will never know the ECM is pulling timing, however I felt the power loss in my stock LS3. I am hoping when I get a 2021 C8 it will be fine. I will data log and find out.
Is that information accessible via Torque Pro and a bluetooth OBDII adapter?
I unfortunately live in California, will 91 octane damage the vehicle in anyway besides reduced power?
So do I for me 91 is all we got and at 5000 miles and no ping
There shouldn't be any loss of power as long as no pinging and timing retardation, increasing octane will reduce power the lower the octane the more power for a given compression ratio, now if you increase compression AND timing AND octane then you will gain power.
Most people will never know the ECM is pulling timing, however I felt the power loss in my stock LS3. I am hoping when I get a 2021 C8 it will be fine. I will data log and find out.
What are baseline will you use? The basic timing maps are not available, not to mention the various adjustments tables.
Are California destined sales possibly programmed (ecu?) differently to accommodate the different fuel regulations/lower octane availability? This may have been done by the engineers without any formal disclosure aside from officially required channels.
I am referring to my oem LS3 tune, not the C8. I do not know if HPtuners is supported with C8 tune. Hopefully, someone will chime in.
HP tuners will allow you to log some basic channels. I don't think you can see the tune file but you can see what the ecu is giving. On the plus side they are allowing a bunch of advance (28 degrees as shown) but they are pig rich up top (12.2 afr). Love the timing, hate the fueling map.
Sorry to jack your thread OP.
HP tuners will allow you to log some basic channels. I don't think you can see the tune file but you can see what the ecu is giving. On the plus side they are allowing a bunch of advance (28 degrees as shown) but they are pig rich up top (12.2 afr). Love the timing, hate the fueling map.
Sorry to jack your thread OP.
Thanks for posting your data log file. Yes, lots of timing @ 28*, but not quite full throttle 83.9%. Commanding 12.2 A/F ratio on the rich side protecting from detonation, reduce knock retard and keeping the catalytic converters happy.
This might explain why some of the exhaust mods leaning out A/F ratio gain HP. However, I wonder once the fuel trims adjust how much HP retains?
Are the parameters limited to what you show or can you input more?
Thank for sharing!
Last edited by Mike's LS3; Nov 8, 2020 at 02:47 PM.
Are California destined sales possibly programmed (ecu?) differently to accommodate the different fuel regulations/lower octane availability? This may have been done by the engineers without any formal disclosure aside from officially required channels.
I seriously doubt it. Tunes are global and for this they have low and high timing tables and adders such as, Intake air temp (IAT) and engine coolant temp (ECT) tables that adjust timing. Also COT kicks in to further richen A/F ratio to protect the catalytic converters from over heating. GM engineers design a global tune with files to protect the engine from weather variances, altitudes and octane. The only drawback is loss in performance.
Last edited by Mike's LS3; Nov 8, 2020 at 02:54 PM.
Pretty much all of the reputable octane boosters are good. Boostane, torco, klotz, etc.
The problem is the MMT. Which coats your plugs orange. I ran it in my old 135i and while it ran amazing, changing the plugs once a year with only 2 bottles worth (during the summer) did coat the plugs orange, or like a dark orange almost brown color. I'm sure the cylinder walls were that color too.
If you use something like klotz which i believe doesn't contain MMT, has lead.
Then you have VP fuels unleaded octanium which as per the name, has no lead, but i believe has MMT.
I'm due for plugs on my car so i don't care about the lead, nor the MMT so i ran klotz during this past summer. I used up a whole gallon's worth. Car definitely felt different. Not placebo. AC on, 90+ degree weather and the car pulled like a freight train no problem.
Exactly right and why id avoid them while under warranty. I use them on a track car to get another 5 degrees of timing but here's two tanks...
The problem is that it also coats the pistons, cats and o2 sensors which would be a warranty compliance concern for me.
Exactly right and why id avoid them while under warranty. I use them on a track car to get another 5 degrees of timing but here's two tanks...
The problem is that it also coats the pistons, cats and o2 sensors which would be a warranty compliance concern for me.
The bigger question is how long does that stuff exit the engine entirely once you stop using ANY octane booster?
If someone was concerned about warranty, only after the fact of using it, what would they do? Just accept the forfeiture of the warranty because of being unaware?
And plus so far from what i read, this residue hasn't been a cause for concern for the engine itself (although if the cats and/or o2 sensors go bad, you might have to get that replaced out of pocket).
The bigger question is how long does that stuff exit the engine entirely once you stop using ANY octane booster?
If someone was concerned about warranty, only after the fact of using it, what would they do? Just accept the forfeiture of the warranty because of being unaware?
And plus so far from what i read, this residue hasn't been a cause for concern for the engine itself (although if the cats and/or o2 sensors go bad, you might have to get that replaced out of pocket).
It can hang around a long long time. Id just try to keep running gas through the the car and obviously replace the plugs.
Ive never known it to cause any significant issues either. Its fouled my plugs and i suppose the o2 sensors would be the next likely victim but never heard of it causing real damage. The only problem is warranty manuals almost all say not to use additives so if you had some catastrophic failure that was perhaps unrelated it would certainly make it easy on them to deny you.
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