RON95 or RON98??
Do you get better milleage from RON98? Better response and power??
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RON95 or RON98??
Do you get better milleage from RON98? Better response and power??
No difference in power. 0.7L/100km better fuel consumption when using Vortex98 over Vpower.
95 octane feels more powerful but rougher.
BP Ultimate, Mobil 8000 and Vortex98 for smoothness.
I usually use Caltex too...
In my previous civic, tried using Unleaded 92 and vortex 98, but didnt really find any difference.... test using 3 full tanks, consumption and power seems the same, so went back to cheap fuel....
So which one you recomend? 95 or 98?
Check the euro Fuel Consumption thread, plenty of good info in there:
http://www.ozhonda.com/forum/showthr...highlight=fuel
I use 98RON most of the time, specifically BP Ultimate or Caltex 98RON
There is another fuel thread also, but its kind of old already, and I suppose many things had change already, new fuel and addictives, etc....
http://www.ozhonda.com/forum/showthr...t=optimax+euro
OK.. I will try filling up with RON98 tomorrow.....
Use Caltex Vortex98. That was the one that I found gave the best fuel consumption.
its all in ur head...
but with australias disgusting fuel i'd go one level up from what the manufacturer recommends, if they say 95 then use 98, all the leading petrol companies have basically same fuel, bp, shell, caltex etc, doesnt really matter which one u get, just dont fill up at those dirty independant petrol stations...
I've filled up twice so far on my new euro.. and I find BP Ultimate doing really good! 8.5L/100kms consumption thats city and highway driving :) very happy :D
according to the "i" display on my tacho, i should get around 720kms out of this full tank :D alot better than the Type S!! LOL!
Wait until the engine runs in properly, you'll get even better consumption ftw
the good thing about the K24A is that it has decent torque down low (thanks to VTC I imagine), so u can use a higher gear and dont need to keep the revs high.
some handy info~ http://www.fuelwatch.wa.gov.au/info/dsp_fuel_types.cfm
Apparently WA has the cleanest fuel
98 RON
98 RON is a high-octane unleaded fuel that maximizes engine power and performance, as well as producing less pollution.
BP is currently the only reseller of 98 RON petrol in WA and markets the product under the BP Ultimate brand name.
98 RON is promoted as providing excellent fuel economy, has a sulphur content which is 10 times lower than the national standard for unleaded fuels, and has low levels of benzene, sulphur and lower aromatics.
98 RON is used by some imported and high performance vehicles
---------------
Premium Unleaded Petrol (PULP)
PULP is a special blend of petrol designed to bring high octane, and hence high engine power, as well as knock- free performance to unleaded cars with a high-octane requirement.
A knocking noise can occur in an engine when there is a mismatch between the fuel characteristics and the engine's design, particularly its compression ratio, resulting in pre-ignition (also known as 'pinging').
Selecting fuel with the correct RON for your engine will prevent the knocking fuel effect caused when the fuel combusts in the compression chamber too early.
Many imported cars, and particularly those with turbochargers, are manufactured to run on premium unleaded petrol.
PULP has a Research Octane Number (RON) of 95.
RON is a measure of a fuel's compression performance and the RON rating translates into the amount of engine power. RON requirements vary according to engine type.
I've gone down from 98 to 95, and to tell you the truth, my butt dyno can't feel any difference, and my fuel consumption actually improves.
I use 100 sometimes
i've also said this before and i will say it now, i dont know why the fark they say 98 has gives u better fuel economy than 95 or 91, i refuse to believe it since i've seen on my civic when i ALWAYS got atleast 50kms more out of 91 than 95 or 98.
i also get the same thing on my accord which is a SOHC Vtec, driving conditions are always constant, and i get more kms with 91 than 95 or 98, so this is 2 cars i seen that has totally disapproved the idea that higher octane fuel works out cheaper in the end cause for me it means paying more for each litre and getting less kms...
I get 9.1L/100km consistently with BP ultimate and I have been running the car on BP ultimate from Day 1 (short of the rubbish from the dealer when it was delivered). That's better than most have achieved using 95 RON in an automatic. I do a mix of highway/peak hour driving too.
10000km in 6 months so my engine is relatively run in.
98 RON with some fur additive for lean combustion
It could be that Australia's 95 octane is just passing 95 octane. The Euro needs 95 under normal driving conditions. If you drive it under load like going uphill, then the octane requirement increases. When using 95, if the preignition occurs, the engine runs richer, retards cam timing and ignition timing to compensate. When that happens, you get higher fuel consumption. I think this is why you see 98 giving better fuel economy on the Euro but not on other cars that require 91 octane.
BP Ultimate, 98 RON here
~5000km 06 Euro, ~9.6L/100km all city driving
been with optimax since new car, now v power so still shell's 98. so i have no idea what other fuel be like :D shell saves 4c + it's close to where i live.
I've been using 98 (from different companies) from day 1 of my car. Then last week, my bro borrowed it and filled her up with Shell 95. I personally could not feel any smoothness or performance difference between 95 and 98 (fuel consumption has not been measured though).
BP Ultimate feels smoothest to me, but not a big difference between the others, and as always, it depends which is CHEAPEST! hehe
I use BP 95RON. Sometimes 98RON but can't notice any difference in power or fuel consumption. 98RON may seem a little smoother sometimes but that could be in my head. Not worth the extra money IMO.
I tried vpower for 4 full tanks then switch back to normal 98 and straight away feel the power lost and the car felt sluggish... but then could not afford vpower all the time and the car is not a honda then.
Anyway put in full tank of vortex98 today... pump until it stop, then pump somemore until it stop again, and still no $50 yet... I thought its full already and didnt want the fuel to leak out... The fuel warning light already blinking when I pump petrol so I thought wow, so little fuel only, and then paid for it.
When I start, its only 3/4 tank full..... the mouth of the tank must be very narrow.
^^ It's the pump's fault. Go to another station or use another pump.
I run vortex 98.I don't think there's much diff between it and others(mobil8000,ultimate).Not a big fan of optimax(vpower).Seems to leave a lot of black deposits on exhaust????
Oh please enlighten us with your wisedom. He's simply stating something he's noticed due to HIS OPINION.
rofl. Forums are full of people with varying knowledge, lets not bash n00bs :p
I imagine dirty/cheap oil also cause exhaust carbon buildup yeh?
use 98 or 100, it helps remove carbon deposit.
i only go Shell so I am comparing 95, Vpower and Vpower racing
nope
i tried those before. I felt Shell's petrol is the best
my 0.02 cents
=)
agree wif u bro..
optimax enough for me :)
I notice on the petrol tank lid, there is mention that can use the Etanol E10 or something.... anyone got any idea whats that?
It means the car can use petrols with 10% ethanol content mixed in.
http://en.wikipedia.org/wiki/Ethanol_fuel
V-Power Racing got 5% ethanol already in it
"united" petrol stations have 10% ethanol mix, which u can use for ur car if its indicated. its cleaner fuel for ur car and "u'll have less carbon buildup" in ur exhaust...
i've been using Optimax and now V-power since I got the car new. Haven't experienced any problems, but I also haven't been able to try other brands as I'm stuck buying from Shell with my fleetcard.
ethanol is cleaner then normal fuel but you may lose power around 3-4% as
it isnt as combustible as petroleum, honda tested and approved its use in euro's (most new honda's in fact). and it should be the same price as ULP (cheaper then PULP) so it could be a option,
I aint a fan of regular shell petrol, i know alot of people with bad experiences with it especially in motorbikes (yes i know cars and bikes are different). I'm sure v-power or optimax is ok, after all ferrari was involved in development.
So which fuel got the etanol mixed in? I dont trust those small private stations....
i dont trust the small independents either.
i think most brands now have ethanol in then, it was originally used as it has water evaporating qualities whilst also combustible. then someone worked out its cleaner then petrol lol. at one stage caltex petrol (pulp) had no ethanol in it but i think that has changed, as im a caltex user i see the %'s displayed at the pump im not sure how good other servos are at displaying that kind of info
I have just done another average fuel consumption over 10 fills using BP Ultimate. My average is now 7.9L/100km, 2005 manual with 27,000kms. Remember I live in a country area and get involved in city traffic twice a month if I am unlucky. Cruising at GPS 116kmh or a speedo indicated 120KMH on a trip to Cowra I got 7.51L/100kms I compared this with a 2 litre Peugeot diesel who got 6L/100kms on a similar drive to Cowra, I'm happy.
You would do even better if you dropped your average cruising speed by 10-20km/h ;)
Correct, and I should but this car is too good to mooch around. It seems to come alive on long fast sweeping bends when 4,000rpm is the norm. Then when I stop to refuel I can see how much I have enjoyed myself:eek:
LOL my averge speed atm is 31km/h....fuel consumption 14.1L / 100kms DAMN!!! and its my first week of owning the car...running on 98ron or otherwise known as V-power avaliable at shell service stations..jst filled up 2day full tank ..goann test to see how much i can get out of this tank ( shifting between 2k to 3k revs) hopefully it will maximise fuel usuage :D
Suggest you change above 2,000RPM otherwise it is a bit of a strain on the engine/transmission. 3,000 rpm seems right for me when in traffic that is moving well. Let's hear about your fuel consumption when you get on a country run. Are you having any difficulties with that FBW accelerator pedal at low revs? I think it is the one negative of the whole car.
Just a nOOb question:
Is it more fuel efficient say when cruising on the highway when going down a slope or similar at say, 90-110kmh to drop the car into neutral to coast down (but fuel will still need to be used to keep the car at idle rpms), or to keep it in 6th gear and let go of the accelerator (for fuel shut-off)? I plan to drive up north coast and if Eurodude can share his secret, that would be excellent!
When going downhill, leave it in gear (as higher gear as possible so the car rolls faster).
The ECU shuts off the fuel injectors when you are motor-braking. If you leave it in Neutral, you will use more fuel since the engine has to keep the revs at 700rpm (although the fuel usage at 700rpm is next to nothing anyway so there wont be much difference really).
Don't do it.Whenever you are in neutral you are not in full control. Just keep it in a high gear if you are in undulating country and don't let the revs drop below 2,000rpm. Going down a steepish hill I am more concerned about control and use the gears to hold the car at a speed I want with occasional touch on the brakes to keep it in check. That 7.4L/100 km is great BUT was it just on the car's computer? If so it is only giving you a momentary glimpse of the fuel consumption. When you fill up is when you know the whole truth.
4.9L/100km is probably the instantaneous fuel consumption.
The average on the freeway will probably be 7L/100km
unleaded 92. thats why my fuel cap says. feels so madd when your 45Ltank is under 50bux and it takes me 600+ kms
Zic, you have an Euro now? :D
The Euro has a 65L tank, he must be refering to his 45L EK
I know I am a bit anal about this but it interests me and I have time to do it. I fill my Euro (automatic) untill the pumps clicks off then top up to the next full litre (95 RON). I use mostly Shell or Caltex (Wollies and Coles discount dockets). I live in the country (Mid North Coast) but do drive to the Blue Mountains near Sydney frequently (about 350 km) I drive on or just under the speed limit and avoid hard acceleration. The attatched spread sheet is self explanitory. My average is 7.7 litre/100 km. My previous car a Holden Acclaim auto (6 cyl) with very similar driving averaged 8.9 l/100km.
Ok the spread sheet didn't attatch. i'll try again.