|
Diesel Engines A forum dedicated to diesel engines fitted to Volvo cars. See the first post in this forum for a list of the diesel engines. |
Information |
|
Which DieselViews : 3377 Replies : 23Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Jan 29th, 2017, 22:39 | #1 |
New Member
Last Online: Jan 4th, 2019 00:57
Join Date: Jan 2017
Location: Sussex
|
Which Diesel
Hi All
Is it worth the extra to run my D5 on Shell V power or similar. Will it help with regard to DPF and smoother running or is it not worth the money. Cheers in advance. |
Jan 30th, 2017, 04:43 | #2 |
Premier Member
Last Online: Apr 1st, 2021 09:00
Join Date: Aug 2010
Location: Kent
|
I started a thread on this a few years ago.
http://www.volvoforums.org.uk/showth...ighlight=Shell I still use V-Power primarily, and the BP version otherwise. |
Jan 31st, 2017, 20:11 | #3 |
New Member
Last Online: Jan 4th, 2019 00:57
Join Date: Jan 2017
Location: Sussex
|
Fantastic Read. Thank you for that. I instinctively put V power in as I assumed this to be beneficial for the engine with regard to the cleaner running. Seems its the way to go. I was at Goodwood for a track day ( Spectator) and had a chat with a guy who had a GTR running approx. 600 bhp. He said he only ran the car on V power as it ran like 'poo' on anything else.
Cheers Ken |
The Following User Says Thank You to KenD5 For This Useful Post: |
Feb 1st, 2017, 23:39 | #4 | |
Member
Last Online: Aug 1st, 2019 19:17
Join Date: Aug 2013
Location: Dorset
|
Quote:
However, I struggle to see what benefit V power diesel makes. I'm not knocking it (haha, 'knocking' it) because I haven't tried it. Diesel engines are a completely different ball game to a petrol GTR. They will always knock and detonate, because that's just how a compression ignition engine works. There's no such thing as an octane rating in diesel, because there isn't any octane. So I guess V power diesel just has more additives to make it burn cleaner? Whereas V power petrol has more octane to make the fuel burn slower and more controlled. A 'whoosh' more than a 'bang'.
__________________
Current: 2003 VW Passat 1.9TDI, 1979 Saab 99 turbo, 1968 MGB GT, |
|
The Following 2 Users Say Thank You to martin93 For This Useful Post: |
Feb 4th, 2017, 00:10 | #5 | |
Premier Member
Last Online: Today 16:07
Join Date: Apr 2011
Location: Belfast
|
Quote:
Diesels have a cetane rating, which partially relates to the fuels resistance to ignition delay. The higher the cetane rating, the less resistance it has to ignition. The engine management system can inject the fuel knowing that the higher cetane fuel will ignite within a certain time frame. Lower cetane fuels would have to be injected earlier, as they take slightly longer to reach their flash point. Longer ignition delay = less performance = less fuel efficiency etc. This is one of the reasons as to why it's better to run a diesel on higher cetane fuel.
__________________
1996 850 T5 - Sold 2003 S40 1.9d - Sold 2004 S60 D5 Last edited by Dancake; Feb 4th, 2017 at 00:13. |
|
The Following 3 Users Say Thank You to Dancake For This Useful Post: |
Feb 4th, 2017, 13:43 | #6 |
Premier Member
Last Online: Apr 1st, 2021 09:00
Join Date: Aug 2010
Location: Kent
|
I also read on this forum that the D5 engine is prone to valve seat wear. The removal of sulphur from diesel accelerates the problem because the sulphur acts as a lubricant. V-Power and the like have added lubricants and so help prevent this wear.
It may cost more, but my engine is noticeably quieter, quicker, and I get better mpg. Although the increase in mpg doesn't offset the added cost, I still think it's worth it for the other added benefits. |
Feb 4th, 2017, 21:30 | #7 |
Premier Member
Last Online: Yesterday 15:09
Join Date: Oct 2011
Location: Groningen
|
I doubt that dieselfuel with or without suphur can lubricate valveseats if the fuel is injected with closed valveseats
And the removed sulphur is replaced with an additive that compensates lubrication and with the addition of biodiesel its lubricated more than ever (yes there was a time that the sulphur was removed and not additized that wroke havoc on fuelpumps) but that time is long gone |
The Following User Says Thank You to 5cilinder For This Useful Post: |
Feb 5th, 2017, 08:24 | #8 |
Premier Member
Last Online: May 2nd, 2018 08:14
Join Date: Sep 2011
Location: DownSouth
|
I would not bother using top of the range diesel fuel as it's cheaper to keep the injectors clean by topping up the fuel filter housing when the element is changed. Just use a major brand direct feed cleaner like Liqui Moly Diesel Purge. It saves time using the priming pump after the filter is changed or inspected.
It is worth sticking to major brand fuel stations, as they check their filters more often and don't use fuel that lacks the EU minimum additive levels. Shell or BP in the UK, or Aral (Owned by BP) and Shell in the EU. Most engine fuel filters can last from 10 to 20K miles, BUT don't push your luck cos some HP pumps can split the element of a full one.
__________________
2003 V40 1.9TD Mods: Scratches, bent bumpers, raised REAR mats & internal mud guards. SHELL ULTRA 5/40 & LIQUI MOLY CERATEC. Everyone should DYOR (Do Your Own Research) |
Oct 29th, 2017, 11:29 | #9 | |
from C30 to XC60
Last Online: Aug 28th, 2023 07:55
Join Date: Jul 2012
Location: Braintree, Essex
|
Quote:
|
|
Oct 29th, 2017, 11:49 | #10 | |
Master Member
Last Online: Jul 27th, 2020 23:19
Join Date: Aug 2015
Location: Chatham
|
Quote:
__________________
2008 C70 D5 SE Lux Nav Geartronic |
|
The Following User Says Thank You to phil1968 For This Useful Post: |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|