2.8l Diesel performance

[cuda Advanced Member Find all posts View Profile Close cuda]

Hi,

Can anyone confirm that they are experiencing similar or same with there new 2.8l diesels? I have found since taking delivery of my vehicle it seems like the engine was acting sluggish but as the km's have been increasing it seems to be getting better. I have done 400km now and it seems like the engine performance has improved by maybe 30%. How long before the engine truly settles down? Will the fuel consumption also reduce? I have noted roughly 9.5 to 10 at 110km/h and city driving closer to 11l/100km. I would think this to be quiet good but it would be awesome if it gets even better.

Thanks
cuda

[brogers Advanced Member Find all posts View Profile Close brogers]

With my previous prado (150 2010 diesel model) I recon it took a good 15,000 km before it was "run in" . I only realised that in hindsight of course, you don't know at the time if the engine is going to loosen up a bit more, and rev easier and accelerate easier etc...but it definitely took a little while to run in. It will be different for different vehicle and cars, but all cars need a running in period. I followed the owners manual recommendations regarding running in. Also, two things with fuel consumption. Yes it did seem to improve with the previous engine as the engine runs in...but are you quoting the trip computer or quoting actual fuel consumption calculated by actual fuel in litres used divided by km (in 100)..because, just in case you were not fully aware, the trip computer doesn't calculate actual fuel consumption, but rather predicted fuel consumption based on a range of parameters, of which actual fuel measurement isn;'t one, so the trip meter, whilst it is a good indication, is only a estimate, and it can change as bit over time as well, and for me, on the last prado, it did get closer to the actual value, but always calculated a fuel consumption that was quite wrong initially, and then got better but was nearly always showing consumption that was better than it actually was. But anyway,, personally, I would expect you would need to do way more than 400 km before the engine is run in...I would be expecting somewhere between 10,000 km and 15,000 km if you follow the running in procedure...
I hope that helps a little bit...I know I haven't referred to the 2.8 GD version (yet) but I am expecting to have a reasonable run in period when I take delivery of the 2.8 GD prado, and I dont pay too much attention to the l/100 km on the trip computer, but use the actual diesel litres I put in the tank and the actual km traveled..which definitely improves as the vehicle is run in and loosens up. I would definitely hope that highway cruising consumption (not towing) would improve at least. Of course, you do loose some economy with suspension lift, roof cage or roof racks and Light truck construction All terrain tyres, so, as I am sure you are well aware, consumption will depend on accessories and modifications as well.

[cuda Advanced Member Find all posts View Profile Close cuda]

Mate thanks for that yep it does clarify very well. If the engine keeps improving performance for me up to 10,000km I'll be very happy. If I drive with sports mode the engine is responding better to my right foot I am finding. Economy will likely go a little bit too the bad side when I apply the lift, bar etc. Wont be for about 12 months so will be interesting to see what economy I end up getting in 12 months time.

[OzDriver Member Find all posts View Profile Close OzDriver]

My 2.8 arrives soon. The performance during test drives was borderline in some situations e.g. steep long hills, but OK overall. So improvement during running in would be ideal. I also suspect that the demo car tyres may have been a bit lower in pressure than ideal for tarmac driving. I also plan to use full synthetic oil. However, neither of these factors would be that major (but may also help economy). I was impressed however with the low turbo lag at low speeds or step-off.

[brogers Advanced Member Find all posts View Profile Close brogers]

From what I can see so far, and I haven't tried really hard to look, yet, but I think all suitable engine oils for the new 2.8GD are synthetic..but I could stand corrected on that. My wife got a new Hyundai, and when I enquired, Hyundai sent me a list of all suitable engine oils. So far I can't even find an email address for Toyota Australia, let alone a phone number for technical enquiries... Still looking

[Rusty62 Advanced Member Find all posts View Profile Close Rusty62]

For the oil go to the Penrite web site for recommendations. Not saying this is the only oil to use but a starting point.


http://www.datateck.com.au/lube/penriteaus/

[brogers Advanced Member Find all posts View Profile Close brogers]

That's right Rusty, Penrite do indeed recommend that oil as meeting the specs for the new Prado, but...in Queensland in summer, a
5w 30 oil, despite being C2 spec and suitable for DPF, may be too thin at high ambient temperatures over 40 degrees c...perhaps?

I think I would prefer a 5w40 grade of synthetic engine oil in summer (that also meets the c2 spec)...well, that's what I'm thinking at this stage anyway...maybe not while the engine is new and is being run in, but certainly while towing in summer....any thoughts about the logic of a 5w 40 oil that meets the ACEA spec as well?

I used a CI4 plus 15w40 oil (and a 15w50 grade of oil in summer) in my last Prado, and the engine was still running beautifully at 250,000km...unfortunately that oil is not suitable for the new Prado.

A 5w 40 synthetic engine oil that also meets the ACEA specs and is DPF compatible may not be as easy to come by it would seem.


Toyota should be be able to provide a list of specific suitable engine oils. Brand, Spec and grade of oil but it's not so easy to contact someone who knows what they are talking about in Toyota Australia.

[brogers Advanced Member Find all posts View Profile Close brogers]

Full Synthetic 5W-40 Passenger and Light Commercial Diesel Engine Oil


Nulon Full Synthetic 5W-40 Passenger and Light Commercial Engine Oil is designed to provide the ultimate protection for all technically-advanced passenger and light commercial diesel engines. Specifically formulated to offer a higher level of protection over fuel conserving 5W-30 engine oil, this oil is suitable for turbo and non turbocharged SUV, passenger cars and light commercial vehicles as well as those needing enhanced protection during long oil drain intervals.


Safe to use in modern diesel engines fitted with catalysts and Diesel Particulate Filters (DPF). These engines require an engine oil with a low Sulphated-Ash, Phosphorus and Sulphur content (Low SAPS).


Benefits
Ultimate protection for modern diesels and light commercial diesel engines.
Recommended for modern diesels fitted with Diesel Particulate Filters (DPF)
Provides excellent cold start-up protection
Fast flowing low viscosity formula
Provides excellent engine cleanliness
Provides excellent oxidation control and thermal stability
Oil stays in-spec during long oil drain intervals

[Rusty62 Advanced Member Find all posts View Profile Close Rusty62]

Enviro+ 5W-40. Suitable for DPF.
Have used this on my D4D motor but have gone back to Penrite HPR Diesel 10 (10W-40). At the time I thought I had a bit of blowby and this was not helping the EGR soot issue. Since have done the 100% block so that is no longer valid.
Have always used this brand of oil (HPR Diesel) and when pulled rocker cover off have noticed very clean internals. No sludge at all.

[vk2ss55 Senior Member Find all posts View Profile Close vk2ss55]

Brothers thanks for the fuel consumption info . My 150 trip computer indicates about 10% less fuel than actual . I thought that there would've been some sort of fuel flow meter but you say it's only done on an estimation so that's interesting . Cheers Ross