CEM additive

[mns488]

Has anyone used that CEM (Cost Effective Maintenance) engine additive/flush/thing?

Its often advertised in 4wd monthly: the ad goes something along the lines of spend 107 bucks to save a 10 grand rebuild (or somehting alike?)

My friend has bought some for his car and offered me some.

What is it, just an engine flush?

Positives/negatives? Usefull/Useless?

I might let him try it out in his toyota 1st.:)

[Quiggers]

Sorry, dont know, but $107 sounds like a vast fortune.....

GQ

[UncleHo]

G'day Mns488:)

Give Incisor a PM as he has been using it for some time now
cheers

[incisor]

i love it, done wonders for my truck. should be a few threads on it in the archives (bottom right)

[mns488]

i love it, done wonders for my truck. should be a few threads on it in the archives (bottom right)

uh huh, so thats how one searches the archives... :angel:

Thanks - found the threads

[LandyAndy]

BRILLIANT STUFF ON JAP DIESELS!!!!! I use it in our Trytoo.Jap diesels are very dirty,they glaze up easily.The Trytoo runs much better after a dose,idles smoother more power better economy.I only use it ever second service now.
I wouldnt put it in my TD5,its a very clean engine,the oil stays clean so I dont think its needed.
Once you do the initial big flush and are happy with the improvements I would drop back to alternate treatments,I dont think the TDi motors tend to glaze anything like a japper.
Andrew

[incisor]

the tdi will glaze if not loaded, let me clarify it by saying MY tdi300 does glaze the bores if it isnt loaded. after a trip pulling the camper trailer or hauling some other heavy load, you can definetly feel the difference. Never had a jap diesel so cant compare apples with apples on that front.

i have found it more noticeable when using fuels other than those supplied by bp or shell.

i now only use those two brands unless there simply is no choice.

i wouldnt be using the oil treatment for cleaning the oil etc in a td5 either, no need, they have a centrifical filter BUT i would be very interested to see how the td5 compares on the glazing front to a tdi300.

[Wortho]

I just used it on my Tdi, it's got just on 300k now and i didn't see any extra gunk come out , however the engine now runs smoother is not as noisy and seems to pull a bit better at high revs. I'm using there fuel treatment too and can't notice much difference, chemtech was just as good next i will be trying the pro-ma fuel treatment as there oil additive is great.
All up i think the CEM engine flush is pretty good but if you do regular oil changes with quality oil you shouldn't need it, not for a couple hundred k anyway. Wouldn't mind trying there AW10 anti friction stuff though.

[DEFENDERZOOK]

All up i think the CEM engine flush is pretty good but if you do regular oil changes with quality oil you shouldn't need it, not for a couple hundred k anyway.


isnt it better to use it more often in order to keep it all clean internally.....?
rather than to let the crap build up and then loosening it all to run through the engine....?

only drawback with this is....you wont know if its doing anything cause you wont feel any difference.......

[Wortho]

isnt it better to use it more often in order to keep it all clean internally.....?
rather than to let the crap build up and then loosening it all to run through the engine...


Yeah but if you do regular oil changes the engine shouldn't gunk up in the first place as the oil will clean it, thats what i meant. My disco has had oil every 5k since new and there was as i said no gunk. It is a bit smoother though.
If you bought s/h and didn't know the engine then i would say definatly go for it as then at least you know it's not all gunked up with crappy oil and sludge.

[DarrenR]

Hi all,
Just thought I'd bring this thread back to life and ask the same question as I'm interested in some more opinions from people that have used CEM.

Basically my thought is to use the "Flushing Oil Concentrate" on my 97 Disco TDi that had done 90,000km's when I bought it. It's actually the oldest mileage diesel I've ever purchased which does give me some mild concern to get it right and keep it that way.

On their website it says "30 mins of fast idle", can't I simply drive in first gear round the block for 30 mins? :D

Once the flush is done I'll go back to my religion of Penrite oil/filter every 5000km's, which I'm sure will open up another can of worms :eek:

Best regards
DarrenR

[SSmith]

used cem on my disco 155000km (first service since i bought it)
had the cem left over from the hilux i wrote off recently

worked wonders on both engines, the tdi didnt have anywhere near as much gunk as the rollux, as expected

there are 2 advised doses of the flushing oil concentrate
1. dirty engine - fast idle 30 mins
2. routine maintenance - drive normally 30 mins
dont ask me what difference it makes, you also use less concentrate for routine maintenance.
as with the rollux ill be doing the dirty engine routine till the oil comes out a little cleaner

can offer a sample if you are in or near melbourne

[DarrenR]

IMHO I don't think I'll do the maintenance dosing as I have heard the TDi engine doesn't soot up the oil as much as most Japanese diesels. Also from my own experience having owned a Isuzu truck, V8 County and a Rangie that all did over 300,000km's with oil/filter every 5000km's and all ran as smooth/good as the day I bought them (all purchased with less than 40,000km's on the clock).

But I do like the initial flush idea and the more old threads I dig up on it, the more it seems to be a positive thing.

Best regards
DarrenR

[incisor]

the maintenance dosing is really only needed if you rarely run the vehicle loaded, i find a drive with the camper trailer after a few weeks of unloaded driving soon gets the motor behaving nicely again...

[DarrenR]

the maintenance dosing is really only needed if you rarely run the vehicle loaded, i find a drive with the camper trailer after a few weeks of unloaded driving soon gets the motor behaving nicely again...

A friend of mine with a same model Disco, recently towed his bosses Disco TD5 100km's back in to town. He commented on both how well it actually towed the TD5 and also how much better it felt to drive after the fact.

So I think you bring up a good and valid point.

It will be interesting to see how it goes on my Disco as the 90,000km's from what the previous owner has said was all stop/start city driving. Although you would have thought the drive back here would have prolly done it a world of good (1400km's there abouts).

Although I am happy with the way it runs/pulls, I actually find it quite a drivable engine, in fact off road I find the TDi has far better engine braking than the V8.

Currently the only things that bug me about it is the diesel puff on start up (may look fine on a Defender or Isuzu truck, but ugly for a pretty Disco :p ), rocker cover leaks, sump leaks and there is a niggly tappet noise which I suspect to be worn valve stem covers (clearance pads, whatever you want to call them).

Everything else that needs doing is purely maintenance.

Best regards
DarrenR

[BigJon]

Currently the only things that bug me about it is the diesel puff on start up

Nothing you can do about that. It is designed in (extra fuel for easier starting).

[DarrenR]

Nothing you can do about that. It is designed in (extra fuel for easier starting).

heh, yeah I know, it just looks like crap :D

Best regards
DarrenR

[Signal1]

:unsure: My knowledge of diesels is lacking especially as my Td5 is my first. I have been driving very gently so far with mainly city driving. I'm averaging about 11.5ltrs/100km. I don't think she's gone over 3000rpm in normal day to day driving and can confidently say I could not drive her any smoother. :unsure:

Am I taking it too easy. Does it need to rev more. I'm interested that comments appear to be that when loaded, it revels in it.

Any hints on how the Td5 should be driven or if in fact I should try CEM or the Pro-Ma stuff to flush her out. Thanks for any advice.

[incisor]

not revs, load....

big difference....

just doing high revs doesnt raise the combustion temperature, pulling a load does and that is what burns the glaze off as i understand it, or you use a chemical to do it eg. CEM or similar.

[Signal1]

not revs, load....

big difference....

just doing high revs doesnt raise the combustion temperature, pulling a load does and that is what burns the glaze off as i understand it, or you use a chemical to do it eg. CEM or similar.

Right-ee-o then...nothing to tow so might try the additive. Didn't mean to hijack the thread with economy questions - will try archives. :wasntme:
Thanks.

[DarrenR]

Pottering around town with stop/start/idle everywhere is probably the worst thing you can do.

Nothing to tow? what no mates with other Land Rovers that breakdown? Never mind just keep a look out on the hiway for the next Landie and offer to give it a tow :eek:

Best regards
DarrenR

[72pug]

Hi Darrenr,
Did you use the CEM yet......?..............if so how did yougo....

also, to all others that use it, did you have SMOKE issues prior to treatment ( not whilst starting, but on the move), and has it made a difference to the smoke...big or small,

Cheers,

Pug.

[DarrenR]

Not yet, but over the next couple of weeks I'll have it done and will certainly report back my opinions/findings.

Going to try the value pack @ $110. http://www.costeffective.com.au/value.htm

I'm actually more interested in it cleaning out any crap that's there rather than any performance gain it may or may not give.

Best regards
DarrenR

[landrovermick]

Hi Darrenr,
Did you use the CEM yet......?..............if so how did yougo....

also, to all others that use it, did you have SMOKE issues prior to treatment ( not whilst starting, but on the move), and has it made a difference to the smoke...big or small,

Cheers,

Pug.

I have used it, it did cut the smoke on acceleration - when used in conjunction with their fuel addetive its the ducks nuts

Mick

[72pug]

Thanks for that Darrenr .....&....Landrovermick, .............using Moreys at present, but will definately get Dad to try this combo in his Tdi.


Cheers,

Pug

[landrovermick]

yeah IMO well worth the value - nothing comes near it

Mick

[72pug]

Rang Brid from CEM this morning & had a chat as to what he thought would work best regarding the Tdi & gave Dad a shopping list for next week, .................that should keep him busy:)


Will let you know how he goes,

cheers,

Pug.