What gas do you use?

[EsoBOFH]

Originally Posted by FT-86GOD

Caltex 98 or BP 98

Is that really 98 octane? is that calculated as (r+m)/2?

I know in Vietnam everything says 98 octane, but it's RON (research octane) which only calculates the isooctane, not the heptane... rather than RON+MON/2 (which is how we calculate in US/CAD).

[track_warrior]

Shell 93, im trying out mixing 93 with a bit of ms109 to see what happens.

[FT-86GOD]

Originally Posted by EsoBOFH

Is that really 98 octane? is that calculated as (r+m)/2?

I know in Vietnam everything says 98 octane, but it's RON (research octane) which only calculates the isooctane, not the heptane... rather than RON+MON/2 (which is how we calculate in US/CAD).

Its 98RON..

Regular is 91 then there is 95 premium and ultimate is 98.....

Caltex:



BP: Apology for size...

[SL]

normal UL is 95 here in the UK, but find my (performance) cars always run better on 99 octane (Shell V Power, Tesco Momentum99) so will be treating her.

[Oriental Life]

NorCal, only Chevron 91 octane from a set of stations I normally use. Occasionally would use Valero if no Chevron around.

I found Shell gas to be, how do I put it... watery - burns out quick, lesser mpgs on our family car. And I can feel that I'm getting less power out of the engine with Shell too (not BRZ, cause I avoid Shell for those reasons). Maybe I'm paranoid.

76 - actually found that regular gas from them can cause detonation (happened to me on several occasions with rental cars). So, I avoid 76 as well, regardless of grade.

[EsoBOFH]

Originally Posted by FT-86GOD

Its 98 octane...

Regular is 91 then there is 95 and premium is 98.....

Just read this on another forum:

America and Australia use two different methods for grading their fuel. Australia is RON, America is RON+MON/2.

The highest "octane" fuel readily availible in America is 92 which is equivilent to our 98RON.


So it looks like your 98 is equivalent to the US 92.

[Bonburner]

Cali
91 ARCO, 76, or Shell so far. :/

[FT-86GOD]

Originally Posted by EsoBOFH

Just read this on another forum:

America and Australia use two different methods for grading their fuel. Australia is RON, America is RON+MON/2.

The highest "octane" fuel readily availible in America is 92 which is equivilent to our 98RON.


So it looks like your 98 is equivalent to the US 92.

Conventional 'standard' "Premium Unleaded" petrol in the United Kingdom, Europe and Australia has an octane rating of 95 RON, and in North America it is AKI/RdON/PON 91-93 (RON 96–98). However, higher octane "Super Unleaded" - often formulated with higher quality additives, is usually set at around 98 RON in mainland Europe; but this can vary by market. Most oil/petroleum companies now 'market' their own Super Unleaded petrols under a unique name - and the current name for Shell Super Unleaded fuel is "V-Power". Like most Super Unleaded petrols, V-Power also contains higher concentrations of detergents and other additives to help clean the engine and smooth its operation.

In Australia, from October 2006, Shell and Coles Express re-branded Optimax to V-Power (98 RON). V-Power Racing, the ultra-high performance variant has a rating of 100 RON although Shell have decided to phase out V-Power Racing from 21 July to mid August 2008, instead recommending V-Power[2]. The previously obtainable higher grade V-Power Racing which contained 5% ethanol to boost V-Power's octane rating to 100 RON has now been phased out by Shell due to a "changing market".....

In the United Kingdom and Denmark (where Super Unleaded must be a minimum of 97 RON), V-Power has a rating of 99 RON (whereas V-Powers' predecessor Shell Optimax was rated at 98 RON). There is one other 99 RON fuel available in the UK, namely Tesco MOMENTUM99.

Seems u are correct.....

[Calidrifter]

Costco, Arco, and Thrifty 91. There is a pump by my house with 100 but not sure how I feel about paying $9/gallon.

[fenton]

Using Husky 94, 10% ethanol blend.

[rcm47]

Originally Posted by russv

I live in California and am using 91 octane Chevron, the highest octane available .

Same here.

[miodculae]

What happened to 87 ? Nobody ? Its not like you're harming the engine.

[drifter]

California's highest octane is 91. Should we be using some kinda of octane booster? If so, what is recommended? thanks

[Starscream15]

91 Non-Oxy