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+--- Thread: Premium or regular diesel? (/Thread-Premium-or-regular-diesel)
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Premium or regular diesel? - Emiel - 23-02-2012 04:28pm
Tomorrow I will collect my Evoque from the dealer. Hopefully with a full tank
However, there will be a time that I have to refuel. I am wondering what kind of diesel other forum readers are going to use in their Evoque?
Will it be the premium diesel, like Shell V-Power of BP Ultimate, or just the regular?
The price of premium diesel is a bit higher than regular, and in many press releases is stated that there is no difference between regular and premium.
On the other hand in Wikipedia is written:
“V-Power Diesel is Shell's version of an enhanced diesel fuel similar, say to BP 'Ultimate Diesel'. Like BP Ultimate Diesel, Shell V-Power Diesel is designed for modern compression-ignition diesel engines, to facilitate enhanced engine performance along with increased engine protection, for more consistent operation and engine longevity.
And in the handbook Evoque is written:
“Use only high quality diesel fuel according to EN590 or equivalent.”
So any suggestions with what kind of diesel I should fill her up?
RE: Premium or regular diesel? - XFullFatTim - 23-02-2012 04:33pm
Regular diesel works just fine! I always used to buy "supermarket" forecourt diesel as it was somewhat cheaper but when I was running TDv8 RRS's and FFRR's I found that the engine performed so much better on Shell and BP the additional cost using them was completely outweighed by the better lt/100km - MPG I got. I have never bothered with the V-Power/BP Ultimate higher octane version though and since last september my RRE has run on nothing but branded diesel (Shell/BP or Jet).
RE: Premium or regular diesel? - rchrdleigh - 23-02-2012 04:48pm
Having had a recent experience of BP diesel emulsifying in the cold I'll not be rushing to use it again as I don't want a repeat of reduced engine performance on the motorway.
RE: Premium or regular diesel? - XFullFatTim - 23-02-2012 05:38pm
Sounds like it was not winter formula and formed wax. A friend of mine has had terrible problems with emulsifying diesel in his wife's Audi A3 cabrio, it was nothing to do with the brand of fuel it was a problem with design fault where water was able to get into the tank through a breather in wet weather. Audi denied there was a problem and he had to point out to them that it didn't matter which brand of fuel they brought or where they brought it they still had a problem.............. a bit like Evoque's not having any documented rattles. Thanks to an owner's forum he found out about the problem, confronted Audi and now has an Evoque on order to replace the A3 that will not do more than 200 miles without conking out because of emulsified diesel!
RE: Premium or regular diesel? - Evo-king - 23-02-2012 09:47pm
I've used Millers Diesel Power Sport before, on a brand new Lexus 220d, because it had known injector problems, I never had a problem with the car like other owners did.
RE: Premium or regular diesel? - XFullFatTim - 24-02-2012 10:50am
That is a Cetane enhancer and I used it for a while for my defender, made a huge difference to engine's smoothness and emissions. Ran the whole bottle through over 5-6 tankfulls and haven't used it since as the car is still running smoothly and relatively quietly (they aren't known as deafeners for nothing!)
RE: Premium or regular diesel? - BFGEvoqueMan - 24-02-2012 11:19am
I had an ML420 CDI a few years back and it made no difference what diesel went in it; it went just as fast and made no difference to the economy. Until about two years ago you could get 91 Oct unleaded here in Germany an we always filled our SLK 200K on it; never made one jot of noticable difference over putting in 95 or 100 Octane, since the engine management system does it thing with the timing to compensate for the octane.
I am sure in laboratory conditions over thousands of miles there is a small percentage benefit in economy or power, but not for an extra €0.15 per litre premium. Stick with normal diesel you will be fine. Diesel "waxing-up" because its cold is another issue, which I thought was a thing of the past since about the mid 1990's when fuel companies put additives in the fuel to stop it from happening?
RE: Premium or regular diesel? - dandavis1 - 24-02-2012 11:23am
Collect with a full tank?! Good luck. Mine had £20 worth in it.
RE: Premium or regular diesel? - Claud - 24-02-2012 08:42pm
I use Esso diesel, best stuff according to What Car test:
[attachment=1579]
Also check this test out on premium fuels - some benefits, but don't appear to be economic considering the extra cost compared with performance improvement. Although there are other less tangible benefits.
http://www.whatcar.com/car-news/are-superfuels-worth-the-cash-/256405
RE: Premium or regular diesel? - BobM - 25-02-2012 03:43pm
Ive spent a couple of days down at the Grangemouth refinery which supplies most of Scotland's diesel. All the tankers fill up at the same depot from the same gigantic tanks. I do know that in the past some suppliers put additives into the tankers as they were being filled or when filled. Anyhow, by the time I find a non supermarket filling station in and around Alloa, the benefits/savings would have been more than wiped out so not really worth the bother.