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What fuel do you use in your car?

Hi , well Mercedes recommend 99 octane petrol in my M276 engine.

I prefer Shell V Power but recently Esso 99 octane will do.

Have used 95 octane as I trial on one occasion but I am General Slow so no difference in my car !
I haven’t seen a Mercedes requiring 99 RON, only 98 RON.
 
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Worth watching this video. Results are only true at the time and location of testing but still informative
 
I remember when Shell gave away wind-up model Ferraris when you bought V Power, around 10 years ago. My kids were small and we got a full set of six, still here on the bookshelf.
 
I've got Shell Lego, even a Shell/Ferrari holdall bag. No such goodies any more sadly.
 
For those of you who've never seen it this is what homemade Biodiesel looks like. My tailpipe emissions are so low the MOT bloke thought his machine was on the blink.

 
Looks impressively clean and filtered nicely. Hide it away though, that Rishi Sunak wants a chunk on tax and more so on the hard working folks 👍
 
V power or Tesco Momentum.
 
Tesco Momentum 99 most of the time and then whatever other brand that is 98 Ron or above.
 
"IndianOil plans to roll-out XP100 premium grade petrol in 15 identified cities across the country.
To fulfill the aspirations of the well-heeled car aficionados, who drive the modern machines that reflect the engineering marvels of the automobile revolution and to match their high-performance beasts, IndianOil is leading the path to launch (the country's first) a high performing and the 'best-in-class 'premium fuel.

Dream vehicles with higher compression ratio engines require high octane gasoline for inspiring, superior performance IndianOil's XP100 with superior antiknock properties improves engine power with faster acceleration, enhances fuel economy and offers better drivability with increased engine life. What's equally empowering is the fact that it helps contribute towards a healthy and cleaner environment with reduced carbon emissions. Its low Benzene content will bring about a reduction in carcinogenic emissions and its low aromatic content reduces suspended particulate matter, thereby improving air quality.

Indian Oil's XP100 is the first such fuel being launched in India. It is an innovative achievement of IndianOil through intense and sustained efforts of its world class R&D, harnessing indigenously developed technology that uses an interface of multiple production streams and quality systems.

Adding a feather in the crown of Atmanirbhar Bharat, IndianOil empowers India to join the league of select advanced Nations like Germany and the USA that offer 100 Octane high performance fuel to demanding customers across the country. Now when you rev up your mean machine for a passionate drive be assured that IndianOil is backing you with a matching high-performance fuel."
 
"IndianOil plans to roll-out XP100 premium grade petrol in 15 identified cities across the country.
To fulfill the aspirations of the well-heeled car aficionados, who drive the modern machines that reflect the engineering marvels of the automobile revolution and to match their high-performance beasts, IndianOil is leading the path to launch (the country's first) a high performing and the 'best-in-class 'premium fuel.

Dream vehicles with higher compression ratio engines require high octane gasoline for inspiring, superior performance IndianOil's XP100 with superior antiknock properties improves engine power with faster acceleration, enhances fuel economy and offers better drivability with increased engine life. What's equally empowering is the fact that it helps contribute towards a healthy and cleaner environment with reduced carbon emissions. Its low Benzene content will bring about a reduction in carcinogenic emissions and its low aromatic content reduces suspended particulate matter, thereby improving air quality.

Indian Oil's XP100 is the first such fuel being launched in India. It is an innovative achievement of IndianOil through intense and sustained efforts of its world class R&D, harnessing indigenously developed technology that uses an interface of multiple production streams and quality systems.

Adding a feather in the crown of Atmanirbhar Bharat, IndianOil empowers India to join the league of select advanced Nations like Germany and the USA that offer 100 Octane high performance fuel to demanding customers across the country. Now when you rev up your mean machine for a passionate drive be assured that IndianOil is backing you with a matching high-performance fuel."
I understand the words. Struggling with the sentences though.
 
There’s a lot of interesting chat on other car forums over the years about this; for example modern Ferraris specify 95 RON and won’t run any better on 98/99, or 100. It seems that 100 is really just an image thing unless you’re racing.
 
Many high performance cars.... like Mercs with the 5.5 TT 63...do specify 98 plus octane fuel to give maximum performance. They will retard the ignition (once knocking/detonation is detected to protect the engine)......but most engines in this country...even very high performance ones specify 95.....if they are designed to run at their best on 95 they won't get any more performance running on the 98 to 100 stuff as they wont be able to advance their ignition timing far enough to take advantage of it. Makes me laugh when I see cars advertised for sale that are designed for 95 saying "always run on Shell V power" or similar. Basically what they are saying is that they have money to burn (laterally!) and don't know too much about engines!
Also don't forget that when a fuel claims to be 95 RON in the UK....that's the minimum it can be....it could be 96 or 97 under test.
 
Only the Esso is 100% petrol out of those.....and even that's not everywhere....
 
Momentum, simply because I have found absolutely no diffference to V power in either engine performance or MPG.. I have not used the Synergy Supreme enough to comment.....
 
Momentum or v-power for me
 

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