Redex Diesel Treament

[nimishashar]

Just bought some of the redex stuff from costco, it doesnt mention how often to use the stuff. Does anyone know how often? could I damage the engine by using it too frequently

Thanks in advance

Nimish

 

[goldestate]

Ask Redex can't see there being anything too harsh in it I bought some from Costco used it and couldn't detect a difference although it's when the engine or injectors get examined/stripped you may get a clue but then you have to control all other influences, fuel usage, etc

 

[nullogik]

I typically add Redex about once a year to my car, but I know people who do it around every six months (they do a lot more mileage than I do).

Every 6-12 months should suffice, depending on how you use your car.

 

[christopherwk]

Is there a difference using Redex and using a premium fuel? (i.e. BP Ultimate/ Shell Optimax).

 

[kwakdonut]

Don't bother and save your money - Which did a very interesting test which actually shows that NONE of these additives does anything but lighten your wallet!

Modern fuels are full of additives to begin with so why waste your money?

Some people swear by Miller's although I have never used it myself.

And as for the high octane fuels, again, unless your car specifically needs it - don't bother!! (Can of worms opened satis....lol)

 

[x332race]

These additives probably make little difference on a new car. However, on an older car where deposits from fuel may have built up, then a good clean out with an additive must surely help??

 

[christopherwk]

What about this article?

Fuelling Around#

(last few paragraphs)

 

[kwakdonut]

These additives probably make little difference on a new car. However, on an older car where deposits from fuel may have built up, then a good clean out with an additive must surely help??

With modern fuels, deposits are so much less than they used to be. Think we all have more problems with EGR systems clogging up than carbon deposits these days!

As an example, I recently took the cylinder head off my 1982 Kawasaki z650. Head had never been off and with 28k on the clock I was expecting loads of build up - very little actually, most of which came off with Scotch-Brite!

I also remember having to take the head off my old VW Passat (a Mk1 of 78 vintage!) - 160k+ on the clock and again, actually very little in the way of carbon build up.

As I said, modern fuels are very good at keeping your engine 'clean'

 

[Tony Russell]

I used Forte recently on the advice of an MB specialist to address an injector issue.
It did bring the faulty injector back online and I've used it fairly neatly a couple of times in the past month to keep cleaning it (services were previously skipped so the oil deposits in the engine were a mess).
Maybe it's snake oil, maybe it's a placebo, but I think it made a difference.
Not sure about Redex though.
It definitely had the effect of producing loads of smoke when poured neat into the carb of my old petrol Audi and made it run smoother. But so did carb cleaner. Not sure of the value of adding it to the fuel.

Hope that ambiguous post helps.

Tony

 

[ringway]

Have a read of this recent thread.

 

[Tiff]

Another vote for Forte treatments from me. Im very, VERY sceptical about ANY additives, but Forte has proven itself to me many times. Seen many cars emissions drop drastically after using this stuff, and find the company very very helpful, although they sell to trade only you may find it in some factors and dealerships.

 

[Bobby Dazzler]

although they sell to trade only you may find it in some factors and dealerships.

Ah, that might explain why I've not seen it for sale other than through ebay.

 

[flango]

With modern fuels, deposits are so much less than they used to be. Think we all have more problems with EGR systems clogging up than carbon deposits these days!

As an example, I recently took the cylinder head off my 1982 Kawasaki z650. Head had never been off and with 28k on the clock I was expecting loads of build up - very little actually, most of which came off with Scotch-Brite!

I also remember having to take the head off my old VW Passat (a Mk1 of 78 vintage!) - 160k+ on the clock and again, actually very little in the way of carbon build up.

As I said, modern fuels are very good at keeping your engine 'clean'

This is not my experience and I'll give you a couple of examples, I have seen the head off a Subaru Impreza Sti whoose owner thought it would be a good idea just to run it on supermarket fuel " as they were all the same" 42,000 miles and you should have seen the state of it never seen one as bad ever. Another one Vauxhall Vectra Sri came in with rough running problems nothing obvious, Owner had filled up at a well known supermarket since the car was new, eventually it was an engine strip and you should have seen that one gunge and Sh*t everywhere. Yes all fuels might meet the minimum standards in terms of RON but the additives and detergent packages are far superior in branded fuel than supermarket fuel.

Will try and find the pics and post them so you can see for yourself.

On the other side of the coin my nephews car has never run on anything else other than Shell and Millers petrol additive , when the head was off that about 12 months ago it was clean as a whistle at 68,000. So there you have 2 identical Subaru's one run on Supermarket fuel and one run on Shell + Millers. Chalk and Cheese, Supermarket fuel in my car no, never, no way

 

[Wezzel]

All I will say is that I've been using Redex or Millers since I bought the car 5 years ago. I use any diesel - supermarket or whatever but always put a shot of injector cleaner in at every fillup.

I am now at 220,000 miles on the original injectors, still getting an average of 40mpg to work and back (mixed driving - no motorway), good performance, smooth pickup and no diesel knock.