Engine Oil Flush
Submitted: Monday, May 07, 2007 at 20:18
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3871
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5
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Rumbler
Maybe a dumb question, but...
I used this my first (also the last) oil change on a Troopy I bought with a hard worked (in the outback with SA Dept of Supply) 80k on the clock. What's the opinion about using this stuff. Does it work, how often should it be done & how long should you run your motor with it in to get rid of any gunk? What about the gearbox (manual), transfer & diff boxes?
Reply By: Member - Ian H (NSW) - Monday, May 07, 2007 at 21:05
Monday, May 07, 2007 at 21:05
I have an 80 series diesel and used CEM oil flush. It is fantastic. It seems expensive but it isn't when you do the numbers. You will be amazed how
well it works.
AnswerID:
238463
Follow Up By: hiab - Tuesday, May 08, 2007 at 00:05
Tuesday, May 08, 2007 at 00:05
i agree, i used it on my old 60 as a last resort, and litres of bleep came out, saved a rebuild
FollowupID:
499603
Follow Up By: Gerhardp1 - Tuesday, May 08, 2007 at 10:42
Tuesday, May 08, 2007 at 10:42
CEM flush is brilliant.
The owner is also really helpful even on small quantities, given his main market is massive mining machines.
I have used it on a 60 series diesel and a 3.5 litre petrol engine. The crap that flushes out is amazing.
Cheers
FollowupID:
499642
Reply By: Jimbo 2121 - Monday, May 07, 2007 at 21:51
Monday, May 07, 2007 at 21:51
Flushing oils are a little bit old fashioned with the good detergent oils around now. If you use a good quality detergent oil (most engine oils) and change it often enough along with the filter you should not need to use a flushing oil.
Some people say that with a flushing oil there is a possibility that it will dislodge a big buildup in one peice and cause a blockage elsewhere. Whereas normal detergent oil would chip away at the edges and dislodge it in many small peices that would then be emulsified in the oil and caught in the filter. But if you change the oil often enough then there would not be a buildup in the first place.
AnswerID:
238480
Reply By: anglepole - Tuesday, May 08, 2007 at 08:43
Tuesday, May 08, 2007 at 08:43
Hi Rumler,
The oil companies do not recommend the use of flushing oils. I asked this question of
Mobil via their Technical Info Line, after I found many Nissan Dealers used such products at Oil changes. I asked the dealer was this a Nissan recommendation? The answer was no, just a dealer recommendation.
Holden in their Owner Handbooks specifically warn against such products labelling them a waste of money at the least and the source of possible damage at the worst.
Oil ratings etc.. have to go through rigid testing, these oil flushes often do not.
Happy motoring
AnswerID:
238532
Follow Up By: Member - Bradley- Tuesday, May 08, 2007 at 09:56
Tuesday, May 08, 2007 at 09:56
Sorry mate i think you will find like most dealers, they charge you for flushes and additives, along with all manner of goodies, but dont actually use them. its just a little money spinner. They would scream blue murder if you actually took the time to add it and let it work etc etc....
FollowupID:
499637
Follow Up By: madfisher - Tuesday, May 08, 2007 at 20:42
Tuesday, May 08, 2007 at 20:42
Brad Hi,
when you pulled the restrictrors out was there much increase in noise levels?
Cheers Pete
FollowupID:
499725
Follow Up By: Member - Bradley- Tuesday, May 08, 2007 at 23:15
Tuesday, May 08, 2007 at 23:15
Hey Pete, if you are referring to the exhaust restrictors in my jack, there is a marginal increase in noise when on a trailing throttle coming off cam, a bit of a growl so to speak, the 3.5 quad cam really makes some noise if you open up the intake wrong, really howls and resonates, which while kinda fun for a day or 2 actually drops power by creating reversions in the intake. Done right though they are great. No negatives i have found yet by pulling the restrictors, and i have done it to 2 jacks ive had.
cheers Brad.
FollowupID:
499769
Follow Up By: madfisher - Wednesday, May 09, 2007 at 20:53
Wednesday, May 09, 2007 at 20:53
Thanks for that brad,
just purchased a 98se , of all the ones I drove this one leaves the others for dead, so it may be already done, but will
check out in the next week or so
Cheers pete
FollowupID:
499940
Reply By: Rumbler - Tuesday, May 08, 2007 at 16:19
Tuesday, May 08, 2007 at 16:19
I think what I got from this it's up me to decide, but most important is to use good oil in the 1st place. I should have said I always do my own fluid changes on the recommended Kms using a Diesel oil & the recommended oils for the other boxes (which no one commented on, funny enough). Again I say thanks to everyone. I'm getting to learn a lot from you guys, especially with the opposing
views. It forces me to think about it.
AnswerID:
238595
Follow Up By: ross - Wednesday, May 09, 2007 at 00:10
Wednesday, May 09, 2007 at 00:10
That sludge will not be on moving parts. A lot of what comes out is sitting at the bottom of the sump or other flat surfaces not doing any harm.
Im on the "clean oil and clean combustion will clean the engine" brigade.
FollowupID:
499775
Follow Up By: Jimbo 2121 - Wednesday, May 09, 2007 at 20:31
Wednesday, May 09, 2007 at 20:31
With regards to the gearbox/diff oils they don't have to deal with contamination like an engine does. The most they get would be a bit of muddy water and fine metal particles from wear. Most of the metal will get caught on the magnetic drain plug and the water will drain out.
FollowupID:
499930
Reply By: madfisher - Tuesday, May 08, 2007 at 20:47
Tuesday, May 08, 2007 at 20:47
Mate ,
I would not be worrying about it till 500000ks when the motor is stearting to glaze up. But I reckon a good quality diesel conditioner works a treat on ihzs, after you change the fuel filters about three times lol
Cheers Pete
AnswerID:
238664