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Old 04-18-2011, 12:22 AM   #1
steve330
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Which fuel do you use?

On Sunday night on ACA they did a segment on testing the efficiency/cost of different grades of fuels.
They ran four Hyundai 4wds around a track, with variables such as weight, speed etc all controlled on 3 litres of fuel.
The four fuels tested were RON 91, 95, 98 & diesel.
As expected, the diesel went the furthest. The 98 was second, the 91 came third and the 95 last.
Although it was unexpected that the 91 would beat the 95, the big surprise was that on a cents/litre basis, the cheapest petrol to run was the RON 98! The 10% premium that we pay at the pump over 91 is more than offset by its increased range on this particular car.
Obviously, things are different in the real world and our e46s ain't no Hyundais. So who here runs their e46 on 98? Is there a significant improvement in fuel economy over 91? More importantly, does anyone have any e46-specific data on 98 vs 91 fuel economy?
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Last edited by steve330; 04-18-2011 at 03:18 AM. Reason: Added info
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Old 04-18-2011, 12:24 AM   #2
sprintman
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Never less than 98 RON.
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Old 04-18-2011, 12:38 AM   #3
bobz
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No idea always run my cars on 98RON.

BobZ
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Old 04-18-2011, 12:44 AM   #4
DeclanM3
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I've never run the BMW on anything but 98.

I drove an 85 camry daily for a couple of months (before I started to miss the bmw too much) and noticed a big difference between the 98 and 91 (roughly 10% more efficient).
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Old 04-18-2011, 01:19 AM   #5
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Ye i use to use Mobil 8000 (98RON)... i now use 98 from 7/11 (as the closest petrol station to me changed from a Mobil to 7/11. Apparently they use the same fuel but )
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who da F done that?
prestige warehouse or who?
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Old 04-18-2011, 01:48 AM   #6
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ive been working in service stations for 5 years now, (former manager of 2 BP sites in townsville) and the results found for the hyundai's would be very similar no matter what car was used, bmw, merc, ricers, 98 has been proven to be more efficient, last longer, and is better for the environment, it also doesnt matter which service brand you go to either as every company is allocated an amount of fuel from the controling bodies, (i.e BP 98 is the same fuel as caltex vortex 98 and vice versa) its just labelled different depending on which company you go to,

in case your wondering i now work for caltex and i have done a bit of time at mobile before BP bought them out so im not biased to any one company either
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Old 04-18-2011, 03:17 AM   #7
steve330
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Originally Posted by Declan325 View Post
I've never run the BMW on anything but 98.

I drove an 85 camry daily for a couple of months (before I started to miss the bmw too much) and noticed a big difference between the 98 and 91 (roughly 10% more efficient).
Thanks Declan, your experience supports the figures from the ACA test.
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Old 04-18-2011, 03:57 AM   #8
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Shell V power Only!
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Old 04-18-2011, 05:15 AM   #9
CortinaD
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Originally Posted by YGOAMG View Post
Ye i use to use Mobil 8000 (98RON)... i now use 98 from 7/11 (as the closest petrol station to me changed from a Mobil to 7/11. Apparently they use the same fuel but )
It is the Mobil fuel.

I only use 98 even in my coonas
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Old 04-18-2011, 05:37 AM   #10
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Originally Posted by YGOAMG View Post
Ye i use to use Mobil 8000 (98RON)... i now use 98 from 7/11 (as the closest petrol station to me changed from a Mobil to 7/11. Apparently they use the same fuel but )
ahahhaha yer but now we got slurpees as well
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Old 04-18-2011, 05:58 AM   #11
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98 only. used to always use shell v-power. now ive converted to bp ultimate. noticed its running smoother, as it had a rough idle with the v-power (could of been a couple of bad batches, i dunno) but consumption seems to be only marginally lower as well with the bp ultimate
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Old 04-18-2011, 05:58 AM   #12
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I personally only use BP Ultimate 98.

This is what I've found from my testing and experience:

BP Ultimate No 1 for economy, cleanliness and power.

Shell V-Power was to dirty - leaves yellow gunk everywhere and can be very unrefined. There has been articles around claiming it clogged older carburettor motorbikes etc, I stay away.

Caltex Vortex was not bad, haven't done a lot of driving on it but BP seemed better.

Mobil 800, never trusted it. old filling station, bad tanks = dirty fuel. Here in Sydney anyway.

Majority of brands that provide 91 with 10% methanols are OK but cause serious detonation in performance engines. Good for your average toyota run around shopping trolley, cheap and nasty.

RON 95 fuels...? Why bother, ether get the good stuff or don't even sweat it. Fill her up with that dirty 91 with 10% ethanol!

I never fill up at 7/11's or privately owned small timers. Just don't trust their fuel.

Keep in mind your fuel will vary in performance servo to servo, some hardly sell 98 and it sits there for ages. I always fill up where 98 is frequently used and has a fresh tank of fuel. Old fuel = less power.

Alex
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Old 04-18-2011, 06:06 AM   #13
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Originally Posted by darksigno View Post
ive been working in service stations for 5 years now, (former manager of 2 BP sites in townsville) and the results found for the hyundai's would be very similar no matter what car was used, bmw, merc, ricers, 98 has been proven to be more efficient, last longer, and is better for the environment, it also doesnt matter which service brand you go to either as every company is allocated an amount of fuel from the controling bodies, (i.e BP 98 is the same fuel as caltex vortex 98 and vice versa) its just labelled different depending on which company you go to,

in case your wondering i now work for caltex and i have done a bit of time at mobile before BP bought them out so im not biased to any one company either
I am guessing the others that replied didnt read this, that is good info about the labeling, thanks.
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Old 04-18-2011, 06:24 AM   #14
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Originally Posted by AIM.E46 View Post
Keep in mind your fuel will vary in performance servo to servo, some hardly sell 98 and it sits there for ages. I always fill up where 98 is frequently used and has a fresh tank of fuel. Old fuel = less power.

Alex
this is the only difference between the fuel itself(other than the RON), but before it gets to the servo it all comes from the same place before bieng bought by your big companies like BP, Shell and Caltex, altho i had heard from some big corps while working with BP that they do add something to theirs to keep it fresher and better for the environment, not sure how true tho.

really its up to personaly choice of where you get your 98, but you wouldnt want to get anything but 98 so
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Old 04-18-2011, 06:47 AM   #15
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Shell V power Only!
Amen to that!
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Old 04-18-2011, 07:12 AM   #16
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Old 04-18-2011, 07:18 AM   #17
Drizzles
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BP Ultimate 98RON ONLY!!! Even when the cyclone ripped through up here, I didn't take my car out till I knew that I could get some more BP Ultimate

The missus' Suzuki Swift suffered the fate of drinking some Shell 91 instead
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Old 04-18-2011, 07:14 PM   #18
Nath
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why would one use 91 when there car is tuned to 95/98?

my bmw ran better on BP where my vw runs better on shell
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Old 04-18-2011, 07:42 PM   #19
Nae323
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Always 98 from BP or Caltex.
Haven't taken much notice if it's better from either company, but have a little compared to 95.

After paying around $1.70 for 98 while I was in Tassie, I'll never complain about 98 being around $1.50 at home
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Old 04-18-2011, 08:13 PM   #20
CortinaD
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Quote:
Originally Posted by AIM.E46 View Post
I personally only use BP Ultimate 98.

This is what I've found from my testing and experience:

BP Ultimate No 1 for economy, cleanliness and power.

Shell V-Power was to dirty - leaves yellow gunk everywhere and can be very unrefined. There has been articles around claiming it clogged older carburettor motorbikes etc, I stay away.

Caltex Vortex was not bad, haven't done a lot of driving on it but BP seemed better.

Mobil 800, never trusted it. old filling station, bad tanks = dirty fuel. Here in Sydney anyway.

Majority of brands that provide 91 with 10% methanols are OK but cause serious detonation in performance engines. Good for your average toyota run around shopping trolley, cheap and nasty.

RON 95 fuels...? Why bother, ether get the good stuff or don't even sweat it. Fill her up with that dirty 91 with 10% ethanol!

I never fill up at 7/11's or privately owned small timers. Just don't trust their fuel.

Keep in mind your fuel will vary in performance servo to servo, some hardly sell 98 and it sits there for ages. I always fill up where 98 is frequently used and has a fresh tank of fuel. Old fuel = less power.

Alex
The pickups in the tanks don't suck right on the bottom and most sites will have adequate tank sizing so they are regularly cycling the fuel based on demand.

Shell very unrefined? LOL
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