91Ron, 95 Or 98Ron?

[INSANITI]

Has anyone used e10 91 on their v35s?

Our cars can use 91ron but not sure if with E10 would work.

[scotty nm35]

Our cars can run 91, but are relying heavily on the knock sensor to drop 10 degrees out of the timing map. I wouldn't suggest running it for long...

[INSANITI]

Im guessing its the same for 95ron?

[scotty nm35]

If it is all you have access to, it will have to do I guess.

[AlexanderWilde]

my missus ran it on 91 with E10 while i was overseas for a week and when i got back and drove it i could feel the engine jittery. feels like incomplete burn / running lean and the car was very underpowered, even the gear shifts seemed lazy.
so yes it can run it but it will kill your engine in the long run as the mapping and engine fuel management is intended for ron 95 or 98
i tend to fill up usually when it gets half way and il alternate sometimes 95 sometimes 98 and it runs smooth, no noises, quick response and unexpected surprises.

[sonicii]

I ran 95 for a while when I first bought mine, I have since switched to 98 because it is only about 2cpl more than 95. I haven't noticed any difference in economy or performance.

From memory, Japan has 96RON.

E10 can be anywhere from about 91 to 96 RON depending on how long it has been sitting around.

[Howaitonaito]

Ive ran 98 since day one of owning the V. Get better economy

[GH05T]

just use 98 as we dont have europes 100 unfortunatly

[scotty nm35]

United sell premium 100.

That's what I would be using if I wasn't tuned on their e85.

[sonicii]

Ive ran 98 since day one of owning the V. Get better economy

how do you know you get better economy if you have run 98RON 'since day one'?

[Colt357]

United sell premium 100.

That's what I would be using if I wasn't tuned on their e85.

United 100 octane is garbage. its not really 100octane since it uses 10% e10 to boost the octane rating. been using it until i got my car uprev tuned and now running shell 98, much better

[scotty nm35]

How is it not really 100 octane? And tuning it on 98 will of course feel better than untuned on anything.

The more ethanol the better imo.

[Howaitonaito]

how do you know you get better economy if you have run 98RON 'since day one'?

Would you drink diet coke or normal coke? Normal because you know that its nicer and better than its "alternative" Edited February 10, 2014 by Howaitonaito

[Tangles]

Yeh, it's 100 octane lol

I get poor economy using it compared to normal 98ron fuel.

Up to 50% worse km per litre (ie 250kms for 60L of United 100 compared to ~370kms with Mobil 98)

[win4ever]

I always used RON98 on my 350GT in the past. Had to pump RON95 into it a couple of times when I was out of town and couldn't find a station with RON98 and noticed that the engine tends to be abit more sluggish. Anyway, the manual states that premium fuel should be used and I think I recall reading somewhere that premium fuel is basically at least RON97 or more so I always put RON98 in and have done the same for my 370GT.

[sonicii]

Would you drink diet coke or normal coke? Normal because you know that its nicer and better than its "alternative"

Not really a relevant comparison, higher octane fuel only has a higher resistance to detonation, if you aren't detonating on 95, then 98 will do nothing for you.

I found no difference between 95 or 98 in regard to economy or performance, and I only run 98 now as I believe Japan's fuel is 96 and I prefer to er on the safe side.

[Howaitonaito]

Ive had two nissans before this both australian delivered cars and both went further on 98 than they did on e10.

I got told to put 98 in it when i bought it and i have. Always BP ultimate or Shell V-power (v power in a v)

[sonicii]

Ive had two nissans before this both australian delivered cars and both went further on 98 than they did on e10.

Of course. Ethanol has a lower energy density

I have had 3 Nissans before the V35 and none of them benefited from running a higher octane fuel than they were made for.

if the V35 is indeed made for 96RON, then my preference is not to go below that, which means 98 is the best option.

Edited February 10, 2014 by sonicii

[PN-Mad]

Question for those who have the ability to map / record engine parameters.

Have you seen the ECU ever actually take out timing due to the knock sensor sensing knock?

The knock map is just a secondary Table for ignition values, I don't believe it alternates between the two, but just throws a CEL and then switches over.

I've seen a motor die (nil compression) due to a bad tune knocking (electrodes off the sparkplugs). Yet the knock sensor seemed to do SFA. Unless the tuner didn't complete the knock map, or the knock map wasn't touched and had higher than tuned map values, in which we'll never know.

[sonicii]

According to the FSM, the ECU switches to a 'knock map' when it detects knocking. But I have never observed it or tried to trigger it.