Unleaded Fuel Preference?

[T_BONES]

What's everybody's brand of unleaded fuel preference for their Octavia 162 tsi?

[Dzl_Dubba]

I've only ever put in BP Ultimate.

[Reichter]

1. BP Ultimate (cleaner, less pinging, most power)
2. Caltex Vortex 98 (happy medium)
3. Shell V-Power (ok, most pinging, least power)

This is from previous multiple dyno runs in my S15 and having a Power FC hand controller to view live stats.

[Gerrycan]

1. BP Ultimate (cleaner, less pinging, most power)
2. Caltex Vortex 98 (happy medium)
3. Shell V-Power (ok, most pinging, least power)

This is from previous multiple dyno runs in my S15 and having a Power FC hand controller to view live stats.

You got pinging with 98 Octane? I would have thought that very unlikely unless there was something way out of adjustment, excess carbon build-up...or something?

[hobbie2k]

You got pinging with 98 Octane? I would have thought that very unlikely unless there was something way out of adjustment, excess carbon build-up...or something?

He said it was in his S15 (Nissan 200SX/Silvia) so I imagine it was tuned up a fair bit.

[Reichter]

You got pinging with 98 Octane? I would have thought that very unlikely unless there was something way out of adjustment, excess carbon build-up...or something?

He said it was in his S15 (Nissan 200SX/Silvia) so I imagine it was tuned up a fair bit.

Hobbie2k is correct. 250kw@ the rear wheels. With the BP Ultimate...even on a 30 degree day...i could give it everything and was fine. With Shell v-power...the car would cough and splutter and hesitate. So i would drive off boost most of the time until i got rid of that fuel in tank. In replay mode...the power fc shows the ping go through the roof with shell.

[woofy]

Caltex vortex here. Haven't been a fan of BP as I used to track poor efficiency with it in previous cars. Have avoided she'll for a long time as they used benzene to bump up the octane rating. I use vortex diesel as well.

[Gerrycan]

He said it was in his S15 (Nissan 200SX/Silvia) so I imagine it was tuned up a fair bit.

Oh, that was the 'something'.
I knew there had to be one.

[Tuan]

1. BP Ultimate (cleaner, less pinging, most power)
2. Caltex Vortex 98 (happy medium)
3. Shell V-Power (ok, most pinging, least power)

This is from previous multiple dyno runs in my S15 and having a Power FC hand controller to view live stats.

good info to know ... any idea if this affects a stock turbo car as much as a tuned car ?

[Gerrycan]

Over the years I have come across bits of information, largely unverified and conflicting, that have just confused me over fuel quality and various claims for performance/efficiency/economy.

When the fuel tanker (probably from Singapore) supplying Adelaide is late then ALL major brands fuel stations start running low/out, then the ship arrives the Shell/Mobile terminal at Port Adelaide and normal service is resumed soon after.
I conclude from that situation that the fuel is coming from one refinery, that the 98 Octane (and others) is the same at all three stated brands, and that it complies with the relevant octane rating.
The exceptions seem to be with the independents that ship in from interstate, usually a bit cheaper and have E10/E85 or whatever. Most mechanics have advised me to avoid those like the plague, which I have and so cannot comment on how good/bad they are.
I believe the fuels sold in Australia and sourced from East Asia contain very high sulphur levels and was a reason that many high performance diesels were not imported here until the refiners brought it down to acceptable levels due to government intervention.

So can anyone point me to an information source that can provide any sort of clarification???

[Reichter]

This was years ago (10 yrs) but when i was researching each fuel. I downloaded each data sheet and compared them. Each brand have their own specific formula. Maybe from the same refinery, but tweaked specs per brand. Id have to redownload them all again to see the differences, but im happy to stick with what i figured out as above.

I would put mobil synergy 8000 as no. 2 but it is hard to find now.

[gadget007a]

added to the quality of the fuel there is the condition of the service station. there was a BP servo nearby that whenever we filled up soon after a large amount of rain, the cars didn't run well.

fuel my local Shell servo contains a small amount of water in it also, i found this out when i was constantly having to clean out the fuel tank of the lawn mower due to water build up. if i fill up a 5l fuel can and leave it sealed for a week or two i notice approximately a spoonfull of water accumulated in the can.

I always try to find a servo that has a high turnover of fuel so it has less time sitting in their tanks for all impurities to settle out.

[brad]

What's everybody's brand of unleaded fuel preference for their Octavia 162 tsi?

Mine used to love Shell V-Power. I stopped buying it when the shopper dockets became useless and started getting 98ron from the local independant Westside Servo (supplied by Mobil). His fuel was amazing. Then he stopped stocking 98ron.

Now I mostly use Caltex 98 or 7-11 98(mobil). Occasionally I put in BP. The car runs pretty much the same on all of them.

100ron gives a nice boost in torque but the economy is all over the shop.

If I run V-Power these days the economy goes bad for a week or 2.

For those that are anal retentive about fuel economy:

Average consumption over 154,000km = 6.7L/100km

United 100ron e10 = 6.8L/100km
United 98ron e10 = 7.0L/100km
Mobil 98ron = 6.6L/100km
Westside 98ron (local independant) = 6.3L/100km
BP Ultimate 98 = 6.7L/100km
Caltex Vortex 98 = 6.5l/100km
Shell V-Power 98 = 6.7L/100km
Caltex 105ron E85 = 7.7L/100km

[Gerrycan]

For those that are anal retentive about fuel economy:

Average consumption over 154,000km = 6.7L/100km

United 100ron e10 = 6.8L/100km
United 98ron e10 = 7.0L/100km
Mobil 98ron = 6.6L/100km
Westside 98ron (local independant) = 6.3L/100km
BP Ultimate 98 = 6.7L/100km
Caltex Vortex 98 = 6.5l/100km
Shell V-Power 98 = 6.7L/100km
Caltex 105ron E85 = 7.7L/100km

I resemble that remark!
To be honest I have identified ambient temperature as having more effect on my fuel consumption than brand.
The E85 figures make sense as it has less calorific value per litre than petrol.

[brad]

I resemble that remark!
To be honest I have identified ambient temperature as having more effect on my fuel consumption than brand.
The E85 figures make sense as it has less calorific value per litre than petrol.

I find consumption increases in winter (<15 c). 20-24 degrees seems to be the sweet spot. As it gets hotter (30+) I assume the less dense air & heat soak increases consumption as well?

e85 - guzzles it down but amazing increase in power... then after about 40L the engine throws a CEL because the O2 sensor goes out of range.