E10 vs 98RON

[weirdone]

Hey guys I joined the Holden club! My first car is a Holden VE 07 Omega and it says on the fuel cover E10 but I’ve been putting in 98RON will this damaged my car in anyway?

 

[Immortality]

Welcome.

It won't hurt the motor, just your back pocket.

 

[losh1971]

98 is more refined it will be better for your bus than 91 or E10. But like Mort alluded to it will cost you more per km. I've run it for years and got better economy but not 20c per litre better. I think a good compromise is 95. It is still cleaner than 91, it will provide some slightly better economy (about the same as 98) and is only 12c a litre more not 20c.

 

[Grimes]

I concur with all of the comments above and add to that a suggestion to generally avoid using E10. I know of a few examples where long term use of E10 correlated with cat converter and oxy sensor issues in parallel with examples where E10 was never used and no issues were encountered. We’re talking sustained use of E10 and VE’s above 150,000km so keep that in mind. The engine is compatible for E10. I have a 2007 VE with a shave short of 200,000km and run either 95 or 98.

 

[vr304]

Hmmm I wonder if the issues grimes was describing above also correlate to our e10 that we get here in NZ from gull? It’s a 98 octane version

 

[J_D 2.0]

I concur with all of the comments above and add to that a suggestion to generally avoid using E10. I know of a few examples where long term use of E10 correlated with cat converter and oxy sensor issues in parallel with examples where E10 was never used and no issues were encountered. We’re talking sustained use of E10 and VE’s above 150,000km so keep that in mind. The engine is compatible for E10. I have a 2007 VE with a shave short of 200,000km and run either 95 or 98.

I did use E10 in my VE SV6 for an extended period (probably about 100,000kms, before I realised it’s a rip off) and didn’t have any issues with it.

I wouldn’t recommend that anyone uses E10, not because it’s bad for your engine but because it’s normally bad for your wallet. Unless the cost differential is greater than 2-3% your actually paying “more“ for E10 than standard unleaded as you burn 2-3% extra when using E10 as the ethanol has less energy in it than petrol. Realistically if the price isn’t about 5 cents per litre cheaper than regular 91 unleaded your getting ripped off.

 

[woteva]

When our VE series 2 Omega was new, for many years we always used E85 as it was about 20 cents a little cheaper than 91. Then used E10 for many years when it was 4 to 6 cents a litre cheaper and now always using 91 as E10 is only 2 or 3 cents cheaper.

My friend worked at the Mobil Port Stanvac refinery as an engineer before closure. He always said to use the fuel type your vehicle was designed for. You won't get any extra measured performance or distance using 98 in a motor designed and tuned for 91.
I remember also reading something the same from a study done by RAA.

 

[losh1971]

My friend worked at the Mobil Port Stanvac refinery as an engineer before closure. He always said to use the fuel type your vehicle was designed for. You won't get any extra measured performance or distance using 98 in a motor designed and tuned for 91.

I did tests over 100s of km and did fill to the brim and drove 100km and 200km a few times with a few different vehicles and 95 certainly gave better mileage over 91. Two friends I know that did the same thing said the same thing, one was a girl and girls are generally tight-arse with anything car related. But like I already said 98 really made no noticeable mileage over 95. None of those cars had anything except factory tunes except the ute, which is now gone and all my cars were designed to run on 91.

 

[losh1971]

As far as cost per km is concerned any premium fuel will hit the wallet harder now that even 95 is 12cpl more exi than 91. When it was 6cpl cost per km was about the same. I still use 95 as a min though because I found my injectors never need servicing and my fuel filters don't clog up on it. Unfortunately we have some of the worst petrol standards in the Western World, hence why our 91 fuel is far less refined than a lot of other countries.

 

[woteva]

I did tests over 100s of km and did fill to the brim and drove 100km and 200km a few times with a few different vehicles and 95 certainly gave better mileage over 91. Two friends I know that did the same thing said the same thing, one was a girl and girls are generally tight-arse with anything car related. But like I already said 98 really made no noticeable mileage over 95. None of those cars had anything except factory tunes except the ute, which is now gone and all my cars were designed to run on 91.

RAA says different -

Is all fuel created equal?

Find out what’s in your fuel and whether there’s any difference between big-name brands.

samotor.raa.com.au