Redex, Cataclean, or premium Shell/BP fuel?

atrixblue.-MFR-.

use what depot you want its your money! do a long drive once or twice a week to get rid of the soot and diesel build up in your DPF.


if you cant be bothered to do long trips but have a drive, then jack the front of the car up, stick it on axel stands sit in start it up and and get it it upto motorway speeds grab a book and look now and then for a whitishblue tint smoke being puffed out the back, when its gone its done! lower to floor and do the same next week!


redex, cataclean, other shouldnt be used over long periods anyway topping up with fuel then adding them regularly is just a waste of money.

Paperbird

As others have said, as long as you can give it regular runs with the rpm high enough for long enough the DPF will keep itself clean. My car is up to 90,000 miles and the DPF has never given any cause for concern ( and 90% of the diesel it's had came from supermarket pumps ).
I used cataclean on our old petrol Freelander when it failed it's MOT and it brought the emissions back to what they should be.

[quote=[Deleted User];discussion/4994281]What is the feeling on these? I'm mostly interested in keeping the exhaust as clean as possible for the sake of the DPF.[/QUOTE]

londonTiger

redex burnt off my post cat lambda, after using i have lambda error codes. could be a coincidence, could be the cause

Strider590

There's a clear market for this stuff....

People who do short journeys and refuse to believe its their driving habits that are causing their problems.

mirukuru

One point that's being missed here is that a lot of modern cars (mainly petrol) with direct injection systems don't have a jet washing over the valves which leaves carbon build up on the underside which then causes problems. Although it's added to the fuel tank, stuff like Cataclean aren't fuel additives in that sense as they're not for performance, they're for cleaning.

The argument that it's snake oil is as strong as the one that suggests that apart from the emissions claims, it can actually help remove the carbon build up that you otherwise need to strip the inlet to manually remove.

Pay your money, take your choice, but like most things on the internet, the amount of keyboard warriors who claim it's rubbish without ever actually using it and throwing their voice in with no experience is just as high as those who have used it and are happy with the results.

Never used it myself, but my mechanic friend says he uses it a lot to help old/older motors for cleaning & internal degunking so I'd be willing to trust him. Speak to real people, then make your mind up.

DKLS

I wouldn't bother spending any money, I look after my mums car when she goes on holiday and she always comments that it runs better after its been with me. all I do is take it out for a drive get it up to temperature, then give it an italian service.

The way she drives she never gets higher than 2.k revs

mcpitman

Personal experience, I use supermarket diesel and have done for 10 years motoring @ ~35-40k miles per year, I do add Millers diesel cleaner and over a large period of testing I have discovered my car does less dpf regens per tank than without the Millers.

In my mind less dpf regens = cleanerburn/less soot.

So in summary, I find nothing wrong with supermarket fuel. Arguably the Millers could be "snake oil"/"placebo", but I believe my car(s) run better with it.

Ranger8

mcpitman wrote: »

In my mind less dpf regens = cleanerburn/less soot.

I found this to be the case and is why I only use Shell V-Power diesel

mcpitman

Ranger8 wrote: »

I found this to be the case and is why I only use Shell V-Power diesel

But in an MSE manner it works out cheaper to use supermarket fuel and additive than Shell V-Power. :money:

70l per tank @ 105.7ppl = £73.99 per tank
1 shot of millers (50ml from 500ml bottle) = £1 per tank
Total tank cost = £74.99

Shell V Power at my local station is 110.7ppl @ 70l = £77.49

At a tank a week and a £2.50 saving per tank, that's £130 a year better off. :T

But then you don't have to mess about with additive bottles etc....

Iceweasel

Whilst I accept mcpitman's maths, Millers and all similar additives have the same distinctive horrid smell which lingers for ages.

Difficult even to wash off your hands if you get a tiny bit on them when opening the bottle and pouring.

If you keep the bottle in the boot then the smell gets into everything - including the weekly shopping. :mad:

Mrs Iceweasel banned me from using these additives a long while back.

I was happy with Millers results - but Shell V-Power/BP Ultimate/Total Excellium is cleaner and easier and only a tad more expensive for me as I don't need a tankful every week.