Thread: D2a Oil Additives - any experience or advice?

Good stuff comes from here.

https://costeffective.com.au/solutio...-repair-bills/

I used to be a great believer in additives until I changed the rear output shaft on my borg Warner transfer.
i had put Nulon G70 in it and found all the moly coated on the inside of the rear extension housing and the splines so worn they had jammed and needed to be removed with a fbh.
Such is life.
regards Philip A

I've used this cost effective maintenance stuff on my prior Pajero and now the D2a. The flush concentrate , aw10 and the diesel additives. The Mitzi had abt 200xxxk on it when I started with additives , she was smoking and sluggish, didn't like to rev out and the back diff was getting noisy. Fixed all that overnight.

Originally Posted by V8Ian

Good stuff comes from here.

Save Money on Repair Bills - Cost Effective Maintenance

X2

Originally Posted by AdamHunter

I've used this cost effective maintenance stuff on my prior Pajero and now the D2a. The flush concentrate , aw10 and the diesel additives. The Mitzi had abt 200xxxk on it when I started with additives , she was smoking and sluggish, didn't like to rev out and the back diff was getting noisy. Fixed all that overnight.

Same here. Flushing concentrate has worked in Hilux diesel (2L engine), 323 petrol + others. I've also used flush concentrate to see if it will assist on smoky Briggs and Stratton 4 stroke motors - it does. Reduced the oil consumption right down. Using FTC and Cleanpower in the Triton petrol and Discovery TD5.
Will get CRD fuel additive when I get a CRD.

IMO most all additives are snake oil and not needed if you use a quality lubricant, especially if you've used good lubes that meet the manufacturers specs from new with prescribed oil change intervals.

This particularly applies to the TD5, which has one of the best oil filtration systems ever fitted to a diesel engine.

If anyone has analysis data and not anecdotal 'it feels better' to disprove what I've suggested I'm all ears.

Rick, I tend to agree, particularly in relation to off the shelf Supercrap products.
My experience was with a high mileage Mack E7 @ 454 HP, due to be rebuilt. The truck had spent quite some time on (relatively) light duty, single trailer float work. It was slow to start (from cold), down on performance and had bad breath.
An urgent job saw it pressed into service pulling a quad and dolly, at full weight. In desperation it was dosed with CEM decarbonizer to fulfill the role. It worked so well, the impending rebuild was deemed unnecessary. The fuel additive was then regularly used throughout the fleet.

Ian, fuel additives can be a good thing, but in my experience need to be used sparingly.

Most are really corrosive to engine bearings due to blow by, and you don't know unless doing oil analysis.

I need to be a little careful and not name names, but I was really surprised when using a diesel additive from one of the majors.
Two vehicles, one IDI, the other DI and both have elevated lead, tin and copper levels immediately using it.
The levels dropped back to a normal tend when I stopped, and another brand didn't change things at all.

I used the second one fairly regularly over 250,000km, and when I popped the head on the Tdi @ 320,000km the pistons and bowls were spotless, you could read every marking/make/number on them.
That was impressive.