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      07-14-2011, 04:08 AM   #1
bodgerx
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E91 + Tesco Momentum = Engine light?

Had my 2008 318i ED E91 for few months now. I had been putting either Total or Shell v-power in it. Recently stuck a tank of tesco momentum in it. 30 miles later I have a yellow engine light indicator on the dash. This is the first time I've put Tesco's petrol in it. Coincidence? Anyone else fill up with this stuff? I am planning on burning through the rest and topping up with v power. If I still get the light then it is off to my local independant...
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      07-14-2011, 04:26 AM   #2
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coincidence
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      07-14-2011, 04:35 AM   #3
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Nothing wrong with the Tesco Super unleaded, ran my 135i and 335i on it, no probs.
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      07-14-2011, 04:37 AM   #4
bodgerx
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My reason for thking it isn't, is that the filler cover states 95-98 RON, and that this light can come on due to knock etc. If I fill up with the good stuff and the light clears I guess it isn't a coincidence. If not I'm thinking this could get expensive. Should have stuck with Honda's...
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      07-14-2011, 04:45 AM   #5
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Quote:
Originally Posted by bodgerx View Post
My reason for thking it isn't, is that the filler cover states 95-98 RON, and that this light can come on due to knock etc. If I fill up with the good stuff and the light clears I guess it isn't a coincidence. If not I'm thinking this could get expensive. Should have stuck with Honda's...
Tesco super, is rated a 99 ron. It's fine really.
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      07-14-2011, 05:08 AM   #6
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I use it all the time and have never had any problems.
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      07-14-2011, 05:30 AM   #7
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I used to put Tesco Momentum 99 RON in my Pork C4S, no problems.
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      07-14-2011, 05:43 AM   #8
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A big love-in for Tesco petrol eh? Who would have thought it? I hope that if there is a real problem it is just a sensor or something. The thing is, it runs fine, I've just got 47mpg out of it over 2, 37 mile runs - not bad for a 2l petrol. It is a little unrefined on start up. but it has always been like that.
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      07-14-2011, 06:47 AM   #9
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plus one on Tesco Optimum/ momentum or whatever its called....

no prob at all....
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      07-14-2011, 07:06 AM   #10
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Yep thats the stuff I put in. Thing is, filler cap on mine states 95-98 RON, whereas Momentum is 99 - which is why I suspect it. Apparently it achieves this high octane level with a generous amount of bio ethanol - which some engines don't run well with.
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      07-14-2011, 07:53 AM   #11
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Tesco premium containts 5% ethanol btw, id stay clear given the problems with ethanol in fuel.
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      07-14-2011, 11:50 AM   #12
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Tesco 99 for me everytime. Never had a problem
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      07-14-2011, 12:13 PM   #13
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I find tesco 99 runs smoother and more consistent than v-power. Seems odd but I can def feel a difference.
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      07-14-2011, 12:44 PM   #14
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Running the JB4 auto tuning map I can run more boost with tesco 99 compared to v-power.
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      07-14-2011, 01:54 PM   #15
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Quote:
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Running the JB4 auto tuning map I can run more boost with tesco 99 compared to v-power.
I forgot to turn on the gauge hijack. Will need to try that and see! Kind of looks like I'm not the only one that felt a difference.
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      07-14-2011, 01:59 PM   #16
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There was a test done by Thornley motorsport and momentum came out the best of the premium fuels. Even bettervthan the BP one which I think is 101 Ron.
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      07-14-2011, 03:37 PM   #17
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No problems here either. Engine runs like a dream on it.

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      07-14-2011, 03:42 PM   #18
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Cant argue, cheapest and best performance fuel IMO
Sounds like a case of, I was wearing my new shoes and I got run over by a bus.
I wont be bloody wearing those shoes again!
Shit analogy but you get the point.
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      07-14-2011, 05:16 PM   #19
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Yes maybe. If you read the "whats bad" section on the E90 on the Honest John site, you just start to wonder though...
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      07-15-2011, 09:28 AM   #20
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Quote:
Originally Posted by Reggie-g75 View Post
There was a test done by Thornley motorsport and momentum came out the best of the premium fuels. Even bettervthan the BP one which I think is 101 Ron.
there was also a what car article a few years back that about a similar comparision with bp, shell etc and the tesco came up tops on that one too

ive used it before with no probs, its good stuff
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      07-15-2011, 10:06 AM   #21
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What tyre pressures are you running Bodger?
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      07-15-2011, 01:09 PM   #22
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Yes, indeed. That lesser known engine-light come tyre pressure warning light...
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