V-Power NiTro+ @ Shell yea/nay?

[Raoh]

I don't care what engine you have, running the cheapest gas is not going to feel nearly the same as running good premium gas. I could even tell my old ford fusion ran better whenever I switched just for the fun of it.

I just now went and filled up on a full tank of vpower nitro. It was 2.99/gallon today (because it's Tuesday) and it did run very smooth on my way home. Can't tell if it felt any different than the usual shell 93 though

My car requires 93 octane. What I am saying is, will 93 for 3.39 a gallon i paid today, be any worse off in my car than 93 from a place down the street for 3.50 a gallon?

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[Crais]

My car requires 93 octane. What I am saying is, will 93 for 3.39 a gallon i paid today, be any worse off in my car than 93 from a place down the street for 3.50 a gallon?

Very likely no. If you're worried about fuel quality from a maintenance standpoint just see if the fuel brand is on the Top Tier list. Even that group is just a detergent standards group.

Each state is supposed to inspect the stations and they get in pretty serious trouble for mislabeling fuel types.

 

[Raoh]

Very likely no. If you're worried about fuel quality from a maintenance standpoint just see if the fuel brand is on the Top Tier list. Even that group is just a detergent standards group.

Each state is supposed to inspect the stations and they get in pretty serious trouble for mislabeling fuel types.

This is what I figured. I have seen some people on this forum who will only use a certain brand of gas, because they think everything else is useless or something? I am unsure.

 

[Crais]

Brand loyalty and superstition can lead people to some strange things. Though, sometimes there is merit to their reasoning for a particular brand/location.
Just ask yourself two questions.
Am I having problems?
Does the change offer anything beyond what I already receive?

 

[R3v]

They are selling V-Power Nitro + in Europe for a few years already, both 95/100 octane (87/93 US rating). Kinda surprised they haven't been doing so in the US. It's one of the best gasolines here in EU.

 

[Lone Survivor]

Does the S550 have knock sensors? If so, then it won't really matter which fuel octane rating you use, as long as it's at least the manufacturers recommended one.

If not, then using a lower octane can and probably will damage the engine. My little V6 Neesan 370 is recommended to use at least 98 octane (UK) but has knock sensors to cope with the poorer bang from lower octane.

The 350 on the other hand, doesn't and there have been cases of engine power loss and serious issues from using lower than recommended octane.

In short, gas (or petrol in the UK), does have an effect on performance, it's just a question of whether the average driver would notice or know. Minimum I use is 97 (here in the UK at BP or Sainsbury's) but normally use Momentum from Tesco, 99 ron.

The question about gas stations with 'poorer' fuel is down to how busy it is and how frequently they receive replen.

 

[Raoh]

Does the S550 have knock sensors? If so, then it won't really matter which fuel octane rating you use, as long as it's at least the manufacturers recommended one.

If not, then using a lower octane can and probably will damage the engine. My little V6 Neesan 370 is recommended to use at least 98 octane (UK) but has knock sensors to cope with the poorer bang from lower octane.

The 350 on the other hand, doesn't and there have been cases of engine power loss and serious issues from using lower than recommended octane.

In short, gas (or petrol in the UK), does have an effect on performance, it's just a question of whether the average driver would notice or know. Minimum I use is 97 (here in the UK at BP or Sainsbury's) but normally use Momentum from Tesco, 99 ron.

The question about gas stations with 'poorer' fuel is down to how busy it is and how frequently they receive replen.

A higher octane rating only affects performance up until you reach what the car was designed/tuned to do. If you throw in race gas into your street car, and don't change the ignition timing, it will still behave the same as using any other gas. The issues come from below the needed octane levels, because the combustion comes early, that's what causes the knock.

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