Would I be better off with Premium Fuel

AlpineRaven · Post by **AlpineRaven** » Mon Feb 15, 2010 9:08 pm

United sells 100ron but only selected outlet, its 98 octane plus ethanol, which becomes 100octane...

*wispers... AVGAS

Cheers
AP

YouTube · Post by **El_Freddo** » Mon Feb 15, 2010 9:31 pm

AlpineRaven wrote:United sells 100ron but only selected outlet, its 98 octane plus ethanol, which becomes 100octane...

What's the cost of that? We don't get united in Benders - APCO is the pick of the bunch if I don't have a 4c docket. APCO keeps the prices down/steady for long periods of time - its not uncommon to see BP 10+ cents more for about 12 hours. One time all the "big" retailers were 10+ cents more than APCO, that didn't stay that way for long, so I try to support APCO when ever I can. They're also Australia's only independant fuel retailer that's 100% Australian owned

End Hijack.

Cheers

Bennie

Gannon · Post by **Gannon** » Mon Feb 15, 2010 9:31 pm

I think avgas is still leaded, which makes it unsuitable for use in a vehicle with a catalytic converter.

AlpineRaven · Post by **AlpineRaven** » Tue Feb 16, 2010 8:27 am

El_Freddo wrote:What's the cost of that? We don't get united in Benders - APCO is the pick of the bunch if I don't have a 4c docket. APCO keeps the prices down/steady for long periods of time - its not uncommon to see BP 10+ cents more for about 12 hours. One time all the "big" retailers were 10+ cents more than APCO, that didn't stay that way for long, so I try to support APCO when ever I can. They're also Australia's only independant fuel retailer that's 100% Australian owned

End Hijack.

Cheers

Bennie

I cannot rememeber its abit dearer than pure 98 octane... not sure.. they're only available in selected outlet, there is one in Hoppers Crossing/Point Cook area near the Geelong Fwy.
Cheers
AP

someguy · Post by **someguy** » Sun Feb 21, 2010 8:07 pm

Just to let everyone know I emptied the tank and went and got some premium the other day.

Put in 7.6L (was $1.40 per litre and this was just as an experiment so thats all i put in)

And to my amazement I got 120km out of that (6.3L/100km) (actually I am lying the fuel guage said I still had a bit more left to keep me going but I was making the 1 hour drive home so I thought I had better not risk it)

And my engine felt alot torqueier and smoother to drive.

So to all EA82 drivers out there who are getting bad performance/economy. Give some Premium fuel a try.

So I managed to get down from 12/100km to 6-7l/100km just by using a better grade of fuel.

I remember the previous owner of the car telling me a couple of years ago something about premium fuel in it. I know she had the carby overhauled and rebuilt, maybe the engine had been tuned for premium as thats what she ran.

Gannon · Post by **Gannon** » Sun Feb 21, 2010 9:21 pm

someguy wrote:I managed to get down from 12/100km to 6-7l/100km just by using a better grade of fuel

Im finding it a little hard to believe that you almost halved your fuel consumption by just using premium fuel. At best, if you advanced your distributor, you might get a 10% improvement.

Also, 7 litres isnt enough to work out anything.

To calculate it properly, you should fill up your tank till the nozzle clicks off, reset your tripmeter, drive until its empty, refill at the same bowser and record how much went in. Now read your tripmeter and record the distance.

Now divide your fuel used by the distance and then multiply it by 100.
This will give you your "Litres per 100Km" reading.

AlpineRaven · Post by **AlpineRaven** » Sun Feb 21, 2010 9:30 pm

twilightprotege wrote:yes true - you have to watch for that. shell uses 91ron and adds 10% eth, thus making it about 94-95ron. i think bp uses e10 to get their ron up to 91. bit dodgy imo.

huh they cant do that - thats illegal!..
Cheers
AP

Punisher · Post by **Punisher** » Sun Feb 21, 2010 9:41 pm

What is the best fuel economy to be expected from an ea82 ?
And is an EJ22 better on fuel economy ?

YouTube · Post by **El_Freddo** » Sun Feb 21, 2010 11:03 pm

Punisher wrote:What is the best fuel economy to be expected from an ea82 ?
And is an EJ22 better on fuel economy ?

That all depends on how you drive!

The best I got from my L - with a fresh EA82 MPFI was 730km on about 60L, as I didn't fill the tank after (wasn't sure there was enough fuel to get to a servo so shoved a jerry can in then drove around til I needed fuel again). That figure was at cruising speed mainly - Adelaide to woodend Vic. I haven't done that with the EJ yet, but on long distance cruises it gets some pretty good economy, around town with the way I drive it can drink a bit - but it'll shit all over an EA82 around town when going for poke.

Towing - the EJ got some awesome fuel economy - 13-15L per 100km, loaded and towing a pop top camper in a head wind! It easily cruised at 100/110km/h where as the old EA struggled to get to then hold 100km/h.

I use 91 ron unleaded cos I'm tight at the moment. Am keen to try some premium or the 98 ron premium but the price deters me...

On the test with 7litres of fuel or what ever it was - I agree with suparoo, you would not be getting accurate figures with that test - how much fuel was left in the tank??? Did you actually drain it compeletly before putting in that small amount then drive it til it ran out of fuel? Try a whole tank and get back to us

I doubt you'd halve your fuel use too. Did you install one of brocky's magnets???

Cheers

Bennie

Punisher · Post by **Punisher** » Tue Feb 23, 2010 12:15 pm

The fuel economy with my 'L' is pretty bad. Lucky if I get 100k's on 20 bux around town. It does seem a bit better on a run.

I think I might start with a can of engine cleaner and maybe a carby rebuild.

someguy · Post by **someguy** » Tue Feb 23, 2010 12:57 pm

Punisher wrote:The fuel economy with my 'L' is pretty bad. Lucky if I get 100k's on 20 bux around town. It does seem a bit better on a run.

I think I might start with a can of engine cleaner and maybe a carby rebuild.

Thats pretty shocking.

Maybe you are just going a little hard on the accelerator.

Most people think you have to be driving like your car is stolen to get bad economy but simply pressing the accelerator pedal down even 1 cm more when taking off from a red light can cause your consumption to sky rocket.

When I first got my L a few years back I was getting around 16L/100km because I was going hard on the accelerator going round corners and taking off from the lights.

Try going easy on your accelerator and see if that does the trick before you try rebuilding your carb.

Also check your carby's fuel/air ratio because if that is even the slightest bit out it can cost you dearly. Also check to make sure your air filter isn't clogged up (if its dirty/grimey replace it....they are less than $20)

Our supercharged V6 commodore averages 13L/100km because I drive it carefully but if I even go the slightest bit harder on the accelerator the Fuel Consumption guage jumps up to around 15L/100

Punisher · Post by **Punisher** » Wed Feb 24, 2010 2:05 pm

lol ... nah, I go pretty easy on the gas, it doesnt make much difference if i put my foot down anyway. The ea82 is pretty sluggish.

fuel/air ratio ... how do you check that ? I know there is probably a mixture screw on the carby, and generally if your mixture is right the exhaust pipe is a light grey.

someguy · Post by **someguy** » Wed Feb 24, 2010 2:38 pm

Punisher wrote:lol ... nah, I go pretty easy on the gas, it doesnt make much difference if i put my foot down anyway. The ea82 is pretty sluggish.

fuel/air ratio ... how do you check that ? I know there is probably a mixture screw on the carby, and generally if your mixture is right the exhaust pipe is a light grey.

Can you smell fuel in the carby barrel.

If you can then its probably running too rich