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*EXTENDED to 30 March* Merlin Tuning ~ SA ~ 8-10 April 2016
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- Lancer Evolution
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- Joined: Mon Feb 14, 2011 3:58 pm
- Location: Adelaide
fuel does become stale. and looses its effective RON rating over time.
Personally i avoid E10 wherever possible now.
as most service stations that advertise 91 E10 is actually 89RON or lower then becomes 91 as ethanol boosts the octane rating for the fuel.
I have had quite a few bad batches of fuel like this in the past which has caused; cold start issues, excessive and very noticeable engine knock as the RPM pings quite aggressively as the timing is retarded. not to mentioned fouled spark plugs which then can cause misfire or incomplete burns and do more damage over time.
luckily it has not led to a complete no start condition yet. but I can tell you paying an extra 5 or so bucks per fill is much better than dropping a FULL fuel tank and draining it when you get a bad batch of fuel.
Generally you do not change low octane maps much or at all as you still need compatibility when you get crap fuel or you are in the middle of the bush.
Personally i avoid E10 wherever possible now.
as most service stations that advertise 91 E10 is actually 89RON or lower then becomes 91 as ethanol boosts the octane rating for the fuel.
I have had quite a few bad batches of fuel like this in the past which has caused; cold start issues, excessive and very noticeable engine knock as the RPM pings quite aggressively as the timing is retarded. not to mentioned fouled spark plugs which then can cause misfire or incomplete burns and do more damage over time.
luckily it has not led to a complete no start condition yet. but I can tell you paying an extra 5 or so bucks per fill is much better than dropping a FULL fuel tank and draining it when you get a bad batch of fuel.
Generally you do not change low octane maps much or at all as you still need compatibility when you get crap fuel or you are in the middle of the bush.
K+N drop in
RA intake
SS 4-2-1 Headers
Whiteline Strut Brace
Whiteline Rear Sway Bar
SuperPro Polyurethane Bushings
Paddle Shifters
Merlinised
RA intake
SS 4-2-1 Headers
Whiteline Strut Brace
Whiteline Rear Sway Bar
SuperPro Polyurethane Bushings
Paddle Shifters
Merlinised
I would never run 91 E10, the E10 I was referring to is those that are 94/95 Octane. I don't think you can even get 91 E10 in SA? Usually only the United or Liberty 94/95. Not sure what MoGas (Mobil) is.
If they got rid of 91 and 95 octane completely and just sold 98, the price would come down considerably. The limited distribution, supplying three fuels instead of just one, and pricing because it's 'premium' all adds to the cost, possibly to the point where the cost would be similar to that of 91 fuel in a three fuel market.
You can still have E10 in this mix, 98 fuel plus ethanol gives you 100 octane fuel. United used to sell that a few years ago but at the time the demand was probably too low to be sustainable.
If they got rid of 91 and 95 octane completely and just sold 98, the price would come down considerably. The limited distribution, supplying three fuels instead of just one, and pricing because it's 'premium' all adds to the cost, possibly to the point where the cost would be similar to that of 91 fuel in a three fuel market.
You can still have E10 in this mix, 98 fuel plus ethanol gives you 100 octane fuel. United used to sell that a few years ago but at the time the demand was probably too low to be sustainable.
I might add a pic of my car once I style the exterior a bit .
- ChrisRalliart09
- Lancer Newbie
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- Location: Adelaide, Australia
So Mobil 98 is a no go then? I was under the impression Mobil and BP were the best fuels. I know with VW's have issues with shell and caltex 98 as engine light comes on in like 5 mins. Might just be a euro thing.
BC Racing Coilovers, 3in Turbo back Exhaust, Merlin Tune.
Once you go black, your endlessly cleaning that.
Once you go black, your endlessly cleaning that.
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- Lancer Evolution
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- ChrisRalliart09
- Lancer Newbie
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- Joined: Sun Oct 04, 2015 8:22 pm
- Location: Adelaide, Australia
I thought this was a Merlin Tuning Thread in Adelaide .... it's slowly turning into a "Which Fuel do You Use" Thread
Get and fill up on E85, but don't tell Merlin
E85 is an alcohol based fuel that is 85% Ethanol and 15% Gasoline.
E85 has an Octane rating of approximately 105-108 RON points.
Get and fill up on E85, but don't tell Merlin
E85 is an alcohol based fuel that is 85% Ethanol and 15% Gasoline.
E85 has an Octane rating of approximately 105-108 RON points.
Sam .....
Merlinised MIVEC - AspiRe 2.4L
Merlinised MIVEC - AspiRe 2.4L
- ChrisRalliart09
- Lancer Newbie
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- Joined: Sun Oct 04, 2015 8:22 pm
- Location: Adelaide, Australia
TrojanHorse wrote:I use Costco 98, is that likely to be a prob? Thing is, thats what Im always going to use so wouldnt it be best to tune on whatever brand fuel that person is going to regularly filling up with so it doesnt cause probs when you go back to that?
I to often use Costco because it's on the way to work. Next time I fill up I will run evoscan for knock.
- ChrisRalliart09
- Lancer Newbie
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- Joined: Sun Oct 04, 2015 8:22 pm
- Location: Adelaide, Australia
Aspir3 wrote: Next time I fill up I will run evoscan for knock.
Just don't confuse it with the knock in your head
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ChrisRalliart09 wrote: So Mobil 98 is a no go then?
Yes it's "Good to Use" ... I've been using Mobil 98 for years with multiple Merlin tuning
Last edited by SAM-24A on Thu Mar 03, 2016 7:37 am, edited 1 time in total.
Sam .....
Merlinised MIVEC - AspiRe 2.4L
Merlinised MIVEC - AspiRe 2.4L
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- Lancer Learner
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- Joined: Tue Feb 09, 2016 8:23 pm
- Location: Adelaide, Australia
I just think my suggestion should be made national policy then none of this would be an issue . 20-25 cents difference between E10 94/95 and 98 is pretty substantial, at the moment it's effectively 20-25 percent more expensive. I guess it's just a question of whether you get 20-25 percent benefit from it in some way, shape, or form, or cumulative 20 percent (say, 10 percent performance + 10 percent economy).
I might add a pic of my car once I style the exterior a bit .
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