Petrol (maybe also applies to diesel)
I try to use Shell V Power Nitro petrol when I can but it's not always possible/convenient so my question, to those who know about such things, is:
Most other outlets also sell "premium" fuel (Esso Energy Supreme, BP Ultimate, Tesco Momentum99) etc. etc.) but how much better for our engines are they? Are they all, or some, a good substitute for the Shell V Power Nitro version?
I think that with V-Power Nitro, the petrol is similar to the top offerings of other premium brands, with zero ethanol, but there is variation on the Octane number, with the BP Ultimate version being the highest at 100 (shell is at 99). Both contain high perfromance polyethylene based detergents to keep the fuel system and engine clean
With diesel, I read the best two were Shell and BP, with the BP diesel having marginally better lubricity. The diesels of these two are manufactured from a gas-to-liquid process from natural gas and are therefore cleaner than hydro-cracked diesel from oil. Similar top products from other brands may be comparable.
i find with my 617a it runs crap on modern eco brands
it likes the old style heavy oil
i find with my 617a it runs crap on modern eco brands
it likes the old style heavy oil
Try putting a splash of 2 stroke oil in each tank full Adrian.
The low-sulfur varieties of diesel have low lubricity, as sulfur compounds are actually a good lubricant. 'V-Power' versions of diesel have no sulfur, but added lubricity compounds which make them much better. Some people have started to add 2-stroke oil to try to replace the lost lubriciy, but scientific tests have shown that the addition of 2-stroke oils damages the fuel injection system due to the zinc they contain.
http://www.fuelexpert.co.za/2strokeoilindiesel.php
http://www.fuelexpert.co.za/2-stroke-oil-in-diesel-technical-study.php
...the use of 2-stroke oil in diesel is potentially harmful to modern diesel injection equipment. Trace amounts of zinc, an element which is found in most 2-stroke oils, are well known to cause injector nozzle fouling and the study measured high levels of injector fouling when the test engine was running on diesel dosed with 2-stroke oil....'
Maybe old. mechanical OM617 injectors have nozzles large enough not to clog, but seems it would be risky on newer cdi to use 2-stroke oil additive.
But then, perhaps not all 2-stroke oils contain zinc or other metallic compounds:
http://www.4wdaction.com.au/forum/viewtopic.php?f=54&t=76845&start=810
http://www.mbclub.co.uk/forums/engine/180848-diesel-economy-56mpg-cdi.html
The safest bet many be Just to use a good quality fuel like shell V-power or BP ultimate, which is actually has the highest lubricity of all diesels.
'
IMO
its a pain that we cant buy a sulfur compound / lead compound to add to our tanks
as the save the planet thing is a bit of a scam
sulfur/lead free fuel short engine life = buy new transport every not so many years
a lot of resources go in to make a new car
and then when you think the airline shipping industry fuel is tax free and higher sulfur/lead
they use a lot more than joe public
Shih THAT OK BIG BUSINESSES
AND THEY CAN KEEP THE CAR INDUSTRY GOING
just a thought adrian
so mark pop down to deanland speak to the guys there and run on 100LL
My other car is a Honda S2000, it has to run on high octane fuel so I thought I would try Shell V power in my GD300, it could be the placebo effect but I'm sure it runs much better and seems to be smoother,
This article explains more (with regards to Diesel and GTL fuel like V-Power):
http://www.carmagazine.co.uk/car-news/first-official-pictures/next-generation-diesel-fuel/
'...V-Power Diesel is a blend of regular petroleum-based diesel and synthetic diesel, created using gas to liquids (GTL), along with some extra additives designed to clean the injection system and improve injection pump and injector lubricity.
One characteristic of V-Power diesel is that it is a lot clearer and odourless than normal diesel, mainly due to the synthetic GTL component.
The fuel is slightly less dense than regular diesel so, per volume, the unit energy is actually lower than regular diesel. This is offset, as the fuel tends to ignite more readily (and thus has a higher cetane rating) than regular diesel, and a side benefit of this is that it tends to produce less soot during combustion.