Hi Guys, just joined as I have now got a rrs.
Question, I have heard that it is a good idea to put additive in the fuel to clean out the fuel system.
Some one mentioned two stroke oil ??
Any help or info would be great thanks.
Cheers Bob

The idea behind adding two stroke oil is to improve the lubricity of the fuel now that almost all of the sulphur has been removed from the fuel. The sulphur gave the diesel a good bit of it's lubricating ability. The logic being that using two stroke oil makes the diesel a better lubricator and so reduces wear etc. I think the idea came from the US - apparently their diesel isn't great quality because they don't really "do" diesel in the way that Europe does.

However, looking at the data available from the fuel manufacturers shows that decent fuel already far exceeds the lubricity requirements of the standards for fuels. http://www.jonesoil.ie/fs/doc/publications/spec-ulsd-2009.pdf http://www.google.co.uk/url?sa=t&rct=j...fRpwhFjqJg show how the wear has been reduced over the last few years (look at the entry for lubricity)

If you want to keep injectors etc. clean then buy a high quality fuel e.g. Esso Supreme http://www.fuelprogress.com/en-gb/supreme-fuel.html, Shell Nitro+ http://www.shell.co.uk/gbr/products-servic...-plus.html

You can buy fuel system cleaners that you add to the tank every few weeks e.g. Millers http://www.millersoils.co.uk/automotive/td...sector=Car
I've tried this product but can't claim to have noticed any difference in economy or smoothness (the TDV8 isn't exactly rough in the first place).

Two stroke oil is probably snake oil but it's unlikely to do any harm if you want to try it - there are a few people on here who have / do run two stroke oil in their RRS.

If you do try two stroke oil, make sure it's low ash and that it's not fully synthetic (apparently doesn't burn as well as "mineral" version). 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Many thanks for the info, would this also help to keep the carbon deposits down ?
Cheers
Bob

Advocates of 2SO say it does that too but I'm not really sure how burning an oil in a motor designed to burn an oily fuel is better in that regard than just burning the oily fuel which the engine is designed to burn.

I would suggest that a decent quality fuel i.e. not the cheapest supermarket fuel you can find but rather a branded fuel with decent detergent additive packs, would be a better long term solution. It will be more expensive, I would guess, as the decent stuff is c.10p / L more expensive than standard.

Indeed, I have a suspicion that many of the 2SO advocates do it as a way to save a few pennies per tankful of fuel. On an engine that costs £5000+ to replace and which takes weeks/months to find a replacement unit, I'm not sure that's good economic sense...

I've yet to see any scientific evidence that burning 2SO is better than just using high quality fuel. Lots of typical anonymous internet forum posts along the lines of "I've done it for ages and had no problems so it must be great". It almost has the feel of a cult / religion in the way some people advocate it. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

That's great info, many thanks.
I will just use the best fuel I can get, and not the cheap supermarket stuff
Cheers
Bob

Good advice there from 'Mr RRSTDV8'. If your TDV8 is running well and returning the right economy - which seems to be somewhere between 28 and 25 mpg then you probably won't gain anything from using a fuel system cleaning additive.

When I bought my RRS it was using too much fuel and had a slight vibration at 70 mph when the throttle was opened. My suspicion is that it had been used for the school run and not much else so carbon deposits had built up.

After putting some Miller's additive through, using only decent fuel, updating the software for the engine, clearing the gearbox adaptations, cleaning as many sensors as I could find and giving it a few long motorway blasts - the vibration/misfire has now disappeared but I can't say for sure which of the actions taken solved the issue. The fuel economy was about 19 mpg and has improved to about 26 mpg and is still getting better. (Those are calculated figures not the on-board computer). 2008 MY Java Black TDV8 HSE

Now come on Paddi fess up. The reason you got bad consumption was that you loved the v8 noise I managed 26 out of Fullfat yesterday in a mixture of hoofing along and being stuck behind a cement mixer for 10 miles of my 38 mile journey  2x TDV6. SE and HSE. Both returned to sender with issues👀
TDV8 Sport HSE...... Gone. Loved it but it didn't love me!!
Now rolling in MY10 Fullfat TDV8 Vogue. Slammed it to go round corners🙈
Cruising daily #56 mph in a Volvo V8. 😱
Lots of other toys in the cupboard...😜

OK Simple; yes love the noise but even more than that love the effortless power and wide torque band.

If anything though driving it much faster now. When a car's new to me - don't like pushing it too hard until I'm satisfied all the mechanicals are in good condition and all the fluids have been renewed.

So the improving fuel economy really is a nice surprise  2008 MY Java Black TDV8 HSE

Good advice (again) Paddi, I've just got my v8 - happy with the mpg tbh, but want to make sure no depoists are sitting clogging the engine up, what process should I go do? See a mechanic to open it up and remove the deposits or run millars etc through it?

I'd like to take action now as the clock has 100k on it and I'm not wanting to chance some horrible damage a few k into owning it. 

Worth a read

http://www.which.co.uk/cars/driving/car-ru...-additives

http://www.simplemotoring.co.uk/supermarke...1_OTVVdXmc Wanted a Series 2 LR since childhood but previously owned MY16 Disco Sport HSE TD4 Auto, MY13 RR Sport Black Edition TDV6 Auto, MY10 RR Sport HSE TDV6 Auto, 2007 Freelander 1 Freestyle TD4 Soft Top, 2009 Freelander 2 GS TD4 Auto, 2007 Freelander 2 GS TD4, 2004 Disco 2 Metropolis Auto, 2002 Disco 2 GS, 2000 Freelander 1 SE TD4 SW

Still hoping for a S2 one day!

Thanks man, reading it now  

Well that was like finding out Santa was a fake... Now what do I do?

The only good advice which I'm not so sure is good advice is:

Quote:

If your car seems lacklustre, thirsty or smoky, the first thing to try is to give it a good motorway run (at least 50 miles) to clear the cobwebs and hopefully jolt the car’s electronic control unit (ECU) out of ‘urban mode’.

But giving my engine a fast run may put it under strain surely? I had seen pics on this forum of carbon deposits on a v8 engine and I was wanting to fix that. I want to try and restore it as best as I can, thinking of changing all the fluids I can find and starting there, but adding millars fuel additive still seems smart. At least it cleans and lubes as it goes through, I certainly dont need more power, its smooth and fast for me. But I could do need peace of mind  

Well I don't believe in snake oil either. Its logical that additives won't improve mpg or power in an engine that is in good health.

Decoking engines is a thing of the past so dismantling and cleaning the engine is not recommended.

In our vehicles (TDV8) it seems the two biggest dangers are clogged up variable vanes in the turbos and oil sludge clogged oil feed pipes to the turbos.

Using the premium fuels is recommended by many and combined with regular good long blasts should help to clear deposits on the turbo vanes. An additive like Millers may help speed up the process.

Regular oil and filter changes at half the interval recommended by Land Rover (i.e. 7k miles not 15k miles) and using premium quality oil and OE filters is sensible and inexpensive especially if you DIY.

I've recently been using my TDV8 for a 120 mile round trip (75% of it high speed) three times a week and can really feel the difference in pick up and the economy has improved a tad from about 22 to 25 mpg. 2008 MY Java Black TDV8 HSE

That is good to hear Paddi, you seem to have the wealth in head knowledge on the engine. So I've looked at your last posts and saved them in a doc for reference. I'll go ahead and get millars into the engine, then look at changing oil in another 6k as I just got it. My mpg is great, I'm very happy with all the sob story tales my family told me on buying an old v8 engine.

So I'm delighted, but keen to stay this way with preventative measures on the engine to keep it running well and happy with no scares or dramas.

I'm getting 25 mpg and if I'm on the motorways around 28 - so I can live with that.
One last question is where does the sludge blockages go once its blasted through the engine on motorway runs? This is why I thought you might have to open it up to remove it. I'd seen a post on here where someone did - they vacuumed it out! Guessing you dont have the skills to do this with out knowing what your doing too. 

Paddi
unfortunately with modern engines and the need to get them to be more efficient the decoke has risen its head
http://totalcarmagazine.com/tech/2014/04/1...rn_engine/