Shell nitro + gas

ShoBoat · June 06, 2015, 10:44:38 AM

Interesting stuff in here, we usually run 91 Shell in our explorer. Which is the new nitro + stuff. We moved over to Petro. 91. Honestly can't tell a difference. Both up here have no corn. MPG is about the same that I can tell. I would try it in my SHO however 91 is the highest grade available by Shell up here. Come to think of it I had the 93 V-power when I was in MI a few weeks back. I also noticed an increase in KR on the expressway on the way home. Not the +7 but it was higher. My SHO seems to like the Petro 94. 0 KR pretty much all the time. Even at cruising speeds lugging along.

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FoMoCoSHO · June 06, 2015, 02:46:04 PM

This weeks fillup was a different station, I get gas from the same place 99% of the time. Out of four I checked, the one I used this week is the only one displaying it on the pump. It is a newly remodeled station however so they probably received the new materials first.

glock-coma · June 06, 2015, 03:34:01 PM

I just added 2 gallons of E85 to top off my fill up from yesterday. We'll see what happens with the KR. I have some highway driving to do tomorrow.

ZSHO · June 07, 2015, 11:01:07 AM

I found this cool site which SHO'S where to locate E85 in your state,if some of you werent aware of,hope this helps any. Z http://www.e85locator.net/State%20Pages/NewJerseyE85stationlocations.html

glock-coma · June 07, 2015, 12:13:53 PM

Good news. After 2 gallons of valero e85 KR is almost gone.
A quick wot blast got some lift knock but 0 KR even after trying on the highway with the ac on.
This is when I got home after idling for about 3mins.

2010 RCM non PP
K&N panel filter with aux hose
RX OCC with CSS
sp534 @ 30
unleashed tune 12.90@106

SHOdded · June 07, 2015, 02:44:20 PM

AND LTFTs are better, bonus!

glock-coma · June 07, 2015, 03:10:25 PM

Quote from: SHOdded on June 07, 2015, 02:44:20 PM
AND LTFTs are better, bonus!

what should your ltft be around.
I'm still pretty new with all this.

FoMoCoSHO · June 07, 2015, 04:39:46 PM

Quote from: glock-coma on June 07, 2015, 03:10:25 PM

Quote from: SHOdded on June 07, 2015, 02:44:20 PM
AND LTFTs are better, bonus!
what should your ltft be around.
I'm still pretty new with all this.

That is a tough one.....yours look completely different than mine tuned but I was tuned for corn.

FoMoCoSHO · June 07, 2015, 04:40:54 PM

Your bank two is right where mine is stock with 30%, bank one is a bit lower.

Still nothing I'd be concerned about.

SHOdded · June 07, 2015, 04:42:56 PM

+/- 5% is considered the max in the best of conditions, need be concerned only when they exceed 10%. Per bank, stft + ltft should be under 20% max.

FoMoCoSHO · June 07, 2015, 05:24:13 PM

Quote from: SHOdded on June 07, 2015, 04:42:56 PM
+/- 5% is considered the max in the best of conditions, need be concerned only when they exceed 10%. Per bank, stft + ltft should be under 20% max.

Lol, lets just say I exceeded that greatly on the 2013 and had no issues with cels or dtcs.....

There is a good section on this in the obd troubleshooting guides you linked to yesterday.

Something else everybody needs to check out on the 2015 guide, they added a section on the dreaded MEGAKNOCK!

SHOdded · June 07, 2015, 05:43:28 PM

Was it momentary or continuous, FoMoCoSHO?

FoMoCoSHO · June 07, 2015, 11:21:28 PM

Continuous for a bit, it took about an hour for the trims to settle and even then I was exceeding +25 LTFT in spots the entire tank.

WickedSHO · June 09, 2015, 10:59:53 AM

Noticed yesterday that my LOR dropped from -1.0 to -0.85 for no reason, bad gas? Also did noticed some higher than normal KR readings, as low as -2.0 and as high as +1.5. I still am not too clear on the KR readings as I don't know much about them, but I do remember reading that negative KR is good? So I assume positive is bad?

I did find a station here in Chicago that is carring this new Nitro+ gas. Put about half tank yesterday. Let's see if the LOR reading goes back to -1.0.

ecoboostsho · June 09, 2015, 11:11:52 AM

Quote from: WickedSHO on June 09, 2015, 10:59:53 AM
Noticed yesterday that my LOR dropped from -1.0 to -0.85 for no reason, bad gas? Also did noticed some higher than normal KR readings, as low as -2.0 and as high as +1.5. I still am not too clear on the KR readings as I don't know much about them, but I do remember reading that negative KR is good? So I assume positive is bad?

I did find a station here in Chicago that is carring this new Nitro+ gas. Put about half tank yesterday. Let's see if the LOR reading goes back to -1.0.

You are correct that "negative" knock is good...it means it is able to add timing. Positive knock is "bad" but 2 degrees isn't a big deal. My LOR typically only changes if I get some sustained knock at low boost levels (i.e. lugging up a hill in 6th) and it may drop back a little but its rare. It recovers pretty quick on its own usually. That is on straight 93 - if I mix in a gallon of E85 or so it rarely ever knocks and LOR never moves off of -1!