95 plus ulp in a vt?

[kyalkk]

is it safe to run 95 plus ulp in a vt series 2 spac v6? its much cheaper and was wondering if it will cause problems

[MikeCuzzy]

That's the ethanol blend yeah?

If so you can read the pro/con arguments of Ethanol fuels in this thread I started ages:
The E10 debate

My personal opinion is don't use Ethanol fuels unless you car is made for it, and yours isn't. Again, this is my opinion based on the evidence I have seen, nothing more.

Mike.

[kyalkk]

ok thanks for that mate

[GenFree]

Nothing wrong with E10,I use E85 in a 2003 Falcon and all is good.Im sure my body wasnt made for iced coffee

Dont look into the ethanol debate,especially on a forum.

[vx_commodore]

I used to use it but i found it used alot more of it over say using normal 91 octane. so in the end it cost more using plus ulp.Eg: $10 plus ulp 75k's, $10 91 ULP 100K's
I have also heard it eat's fuel lines ect but havent seen proof of that..
Just my opinion.

[machone]

theres a lot of debate on this subject ive ran it im my v6 and ls1 and all cool....but i usually stick to the normal unleaded

[Not_An_Abba_Fan]

I used to use it but i found it used alot more of it over say using normal 91 octane. so in the end it cost more using plus ulp.Eg: $10 plus ulp 75k's, $10 91 ULP 100K's
I have also heard it eat's fuel lines ect but havent seen proof of that..
Just my opinion.

The issue here would be more the octane rating rather than the ethanol. Running 95 in a car that is tuned for 91 will make it use more fuel.

I wouldn't use it based on the octane rating, not because it has ethanol it in.

[TonyJZX]

doesn't the knock sensor etc. detect its running on 95 and advance timing?

[Tw11ga]

If you want to save money I recommend just using premium like 95 or 98. My V6 VT Manual only gets around 13L/100km on regular 91 around town. But using 95 it runs smoother and gets around 10L/100km. Used a full tank of BP Ultimate 98 once and got ~800km from the tank. Drove from Tamworth - Sydney - Gundagai. However that was entirely highway ks at around 110km/hr apart from a bit of city driving thru Newcastle and Sydney. I think using premo will save you in the long run. Just my 2 cents. Also my engine has done ~360,000km dunno if that is affecting it

[monkeys437]

Running 95 in a car that is tuned for 91 will make it use more fuel.

You serious? For stock V6's there is definitely an economy gain in using high octane fuel. I don't think 98's worthwhile (in $ per km terms) but the 95 octane there are real economy gains to be had

[vtdan]

Meh, I only ever run E10 in my VT. Have done for at least 40,000k's and no problems.

I still manage to get 450-550k's around town dependent on my driving style. A long freeway trip will see me getting about 700k's + to a tank.

[Brett_jjj]

doesn't the knock sensor etc. detect its running on 95 and advance timing?

Yes it does. The ECU will take full advantage of the higher octane fuel, and will let the ignition timing advance further. I always use 98 octane fuels in my VSV6, it starts and runs better,and I get better fuel economy. Getting a tune done will let the ECU take even more advantage of higher octane fuels, and will allow the ECU to advance the ignition timing even further still, but even the standard tune will take advantage and run better on higher octane fuels. Some people say that they dont notice any difference from running higher octane fuels. Id say that their car is probably not running 100% to begin with if they cant notice any difference.

[Not_An_Abba_Fan]

The ECU can't detect octane. It has a set of timing maps that it uses, and if it detects knock it will retard the timing, but it can't advance the timing to suit the fuel used. It will only run the maximum advance tuned by the factory. The only benefit the car will see running 95 or 98 will be the cleaning properties of the fuel. The car probably runs better because it has cleaned the injectors.

[HSV5L]

Dad allways uses e10 for local etc its fine but for long distance he uses premuim or normal un leded. They other week he filled it up with premium and we got lots of extral ks un like e10 so i think premiums the go and it doesent burn as quick.

[Full Spectrum]

If anyone thinks a little change in quality of petrol is nothing. Well hear this. My car chugs on shells V shit. Starts shit, runs shit, and basically will jerk and miss out of the blue. Ran that stuff for 2 months. Went back to BP ultimate and second tank it was all back to normal. My car has always had a massive disliking to shells premium fuel and i don't know why that is.

[som]

I tow a tinny to Darwin from Brisbane once a year.A few years ago I decided to try Premium unleaded on the way up and 91 on the way back.I've used 91 ever since that trip cos the economy was identical.

[bones308]

hi
I've owned and still own a VT1999 S-pack from new (180'000km) and from day one i have run 95 octane
cars runs cleaner , less fuel???????? but have noticed at every service the throttle body has no carbon build up?