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Petrol types.

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lethalselbow

lethalselbow

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Anyone help me out on whether it's worth buying the more expensive petrols to put in my car? Someone told me you get more km's on the more expensive fuels as opposed to the standard unleaded, and it also cleans your engine.

Is this true or is it much of a muchness?
 
http://www.racv.com.au/wps/wcm/connect/Internet/Primary/my+car/advice+&+information/fuel/
premium unleaded petrol (PULP)

An increasing number of vehicles have manufacturer recommendations to use premium unleaded petrol. Usually a label on the fuel filler cap will indicate what octane rating of fuel the vehicle requires. If the information is not on the cap, it can be found in the owner's manual. Typically, cars that should use premium unleaded petrol include:

  • Many imported cars and high-performance cars require premium unleaded. While some of these cars may have knock sensors to adjust timing when lower octane regular unleaded petrol is used, others do not. It is important to use premium unleaded if the vehicle manufacturer recommends it. Using premium unleaded in a car that is not designed for higher-octane petrol will not necessarily result in improved performance.
  • Pre-1986 vehicles can benefit from the high-octane properties of premium unleaded, as many of these vehicles were designed for high-octane petrol. However, if premium unleaded is used in pre-1986 vehicles, the engine may need to be modified, or an aftermarket anti-valve seat recession additive used to protect the engine.
Premium unleaded usually has a RON of 95 to 96, although a number of products are produced with a RON of 98. Premium unleaded products are also marketed as having various detergents that claim to provide cleansing benefits to vehicle engines.

regular unleaded petrol

Regular unleaded petrol was introduced in 1986, and is the recommended fuel for most passenger cars made since this date. It was introduced to enable new vehicles to operate with a catalytic converter, a device that reduces exhaust emissions.
Regular unleaded typically has a Research Octane Number (RON) of 91 to 92.
Under the National Fuel Quality Standards, a national standard for regular unleaded petrol was introduced and enforced for the first time from January 2002.






It all depends on what you drive mate - as far as mileage goes, any benefits are going to be in the maintenance of your engine running better, so in theory it is correct, but not in the scope of saving a litre per 100kms or anything that drastic.
 
lethalselbow said:
Anyone help me out on whether it's worth buying the more expensive petrols to put in my car? Someone told me you get more km's on the more expensive fuels as opposed to the standard unleaded, and it also cleans your engine.

Is this true or is it much of a muchness?
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Horses for courses in my opinion.. Depends if your cars Engine management system can recognised the additional octane in the more expensive fuels and tune itself accordingly.

My car ROCKED on that 100 Octane Shell Racing fuel... but consequently I probably gave it a squirt more often reducing the fuel economy.

My car seems to be really economical on the United fuel called PLUS ULP which is a 95 Octane fuel but also contains Ethenol.. good thing about the Plus ULP is that it is generally 2-3 cents cheaper than Standard unleaded from Shell or BP etc..
 

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i ran fish & chip fat in my hilux for a year or so.

most diesels blow a bit of black smoke, specially at gear changes when the motor runs rich at the exhaust stroke. After i switched to biodiesel it eliminated that completely. I reckon biodiesel is 95% power of regular diesel and provides about 85% the mileage.

As far as petrol goes; i wouldn't run sugar juice (ethanol) unless you knew you'd empty the tank within the week. Boat motor manufacturers advise against it because boat motors sit idle for a bit longer and the ethanol rots the rubber and attracts moisture more then standard petrol.
 
lethalselbow said:
From what you guys are saying, I'm starting to think that standard unleaded will do the trick. 92 Subaru Liberty isn't probably in need of high performance fuels.... I'm guessing?
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Probably bit of a wank, but probably be good 1 tank every 10 just for the cleaning properties.

If you're after better mileage pump up your tires 15% higher than manufacturer specs (tyre placard). Dependant on load carried, if any? :thumbsu:
 
I reckon their is a difference is suppliers.

Was with Starcard and Caltex for 13+ years before the priacks decided to change my account around leading to me never using those useless bunch of gomers ever again.

I have tried the higher octanes with Caltex. Not so far with BP.

Have found BP 91 octane (regular ULP) was a pleasent suprise. With Caltex would get just around 500km a tank. With BP I get 580km per tank.

So, try the different octane levels AND different suppliers...you might like me become pleasently suprised :)
 
Roberiquez said:
i ran fish & chip fat in my hilux for a year or so.

most diesels blow a bit of black smoke, specially at gear changes when the motor runs rich at the exhaust stroke. After i switched to biodiesel it eliminated that completely. I reckon biodiesel is 95% power of regular diesel and provides about 85% the mileage.

As far as petrol goes; i wouldn't run sugar juice (ethanol) unless you knew you'd empty the tank within the week. Boat motor manufacturers advise against it because boat motors sit idle for a bit longer and the ethanol rots the rubber and attracts moisture more then standard petrol.
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I'm gonna pick your brains next time we have a beer! My shout. :thumbsu:

I've been researching bio for a while and I'm pretty keen to have a crack... So you're mixing methanol and lye and washing the fuel and all that crap???
 
RustyHawk said:
I reckon their is a difference is suppliers.

Was with Starcard and Caltex for 13+ years before the priacks decided to change my account around leading to me never using those useless bunch of gomers ever again.

I have tried the higher octanes with Caltex. Not so far with BP.

Have found BP 91 octane (regular ULP) was a pleasent suprise. With Caltex would get just around 500km a tank. With BP I get 580km per tank.

So, try the different octane levels AND different suppliers...you might like me become pleasently suprised :)
Click to expand...
Shell's good as well. As is APCO
 
Gold Member said:
I'm gonna pick your brains next time we have a beer! My shout. :thumbsu:

I've been researching bio for a while and I'm pretty keen to have a crack... So you're mixing methanol and lye and washing the fuel and all that crap???
Click to expand...

Awwww........we're not gonna talk bloody biofuels again are we Jimmhe? :(
 
There was a trial done somwhere I read cant remeber where
It was based on cost per "x" K'2
It worked out
1 Regular
2 Premium
3 Sugar Juice

But the diffrence was only a few percent
I use Premium, car runs better,the difference is realy noticeable. in terms of how hard you need to squeeze the accelerator.
Have done tests driving from Melb to Qld.Changeing over alternate days.
and Premium cost 10% more and gave 13% better economy.
It wasnt a scientific test and didnt take into account stopping at lights in towns or wind or hills.
But it was better or atleast close enough with better performance for me to keep useing it.
 

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lethalselbow said:
Has there been a thread on biofuels? :thumbsu::thumbsu: ?
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I don't think so but I can promise you Lethal, that there is a LOT of knowledgable beer drunk at the BFHSC get togethers before games and if you are lucky, some of it rubs off.

You need to get along. :thumbsu:

If for no other reason than to listen to Jimmhe drone on for 2 hours about bio fuels. :p
 

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