Ok,
I am hoping to here from people with real world experiences with both of these vehicles as i am looking to buy a newer L322

originally i was set on the 4.4TDV8 with 8 speed but much cheaper 3.6 6 speed units keep popping up.. some of them are the 2010 shape which is very appealing, So i wanted to know things like

Cabin noise comparison, Is the 3.6 really that bad on fuel compared to the 4.4 (no doubt it will be different), Overall reliability... the 4.4 seems to be going strong so far with one major recall for the updated drain for one of the turbo's, How well suited is the 6 speed with the 3.6?, what rpm does the 6 speed 3.6TDV8 do at 100kph?

I know many will say it's a no brainier buy the newer 4.4 with 8 speed but i can also save up to 20k on the earlier model and even though it,s only 6 speed i like the fact it has a proper gear stick...lol

The 3.6 has proven itself to be a very solid engine too from what i can gather, Egr needs attention etc but im not worried about that as i can do my own work, I guess my main worry is after having the 3.6 for a couple of years would i be seriously wishing i had spent more on the 4.4 8 speed combo

Love to hear from people owning either or that have in particular had both

I should also note i am coming from an 04 TD6 which has been fantastic in most ways but it's time to update



Dave

Dave
There's lots of info on here about both.

There have been a few reports of the 3.6 suffering catastrophic failure even when believed to be well maintained. Some blame the EGRs. Some believe turbo failure is also connected to the EGRs. I don't think it's really clear. The very first tdv8s will be coming up to 10 years at the end of 2016. Mine is a Nov 2008 edition. It now has 255,000km and is going nicely. I've had it about 18mths. It's been very well maintained and had a few things done over its life incl EAS compressor, thermostat housing, rear shocks. I've replaced the alternator and the transmission / transfer box. The transmission failure was due simply to a failure to apply grease to the output shaft. Otherwise the box was good. I've recently fitted EGR emulators which allows the EGRs to be disabled.

Mine sits on about 1700rpm at 100km/hr. On a recent trip towing a camper I averaged 11.5lt/100km (according to computer), mostly on the highway. The power and torque of the 3.6 is impressive. The 6 speed is also very nice. The 4.4 would be more so. You will notice a big difference compared to the td6.

I think the electrics were improved with the facelift 3.6.

While I think the 3.6 is a very nice vehicle I would probably go to the 4.4. The only downsides are the cost and that you can't fit 18" wheels to the 4.4. ______________________________
Vogue tdv8 08MY poverty pack - wow

I don't like the 8-speed in my 4.4 compared with the rebuilt 6-speed that was in my 3.0 D4 due to too much torque converter slip and requiring too much throttle and resultant engine revs to get moving off the mark faster than crawling. It does however get better economy than my 3.0 D4. I suggest a good drive of a couple of each.

Note that starting during MY08 and ending during MY12 the various 6-speed ZF gearboxes used by LR and many other vehicle brands were fitted with white-metal stator bushes that don't survive long oil changes and therefore require a premature rebuild. Oil changes at 80k kms max seems to be acceptable - my D4's 130K oil change was not, failing at 150K even though gentle country usage.

The 3.6 sump has 2 drain plugs and it seems that the rear one often gets overlooked. The rear one drains a reservoir for the turbo return drains and has often been found to be badly clogged which is a possible contributor to the occasional failed 3.6 turbos. The 4.4's oil is drained by removing a hose near the front of the sump but it too has a rear drain plug that also gets ignored.

The 4.4 updated secondary turbo drain takes 8+ hours to fit so is costly. Some people just choose to open-up the throttle on a regular basis to get rid of any accumulated oil.

Unnecessary quote removed

I Would imagine allot of the turbo failures might often be due to poor maintenance where oil changes are well overlooked and been done at 20 thousand ks etc , I like the idea of disabling the egr and would certainly do this .. i removed the one completely from the TD6 which is more simple a job to do , The ZF 6 speed is a good box.. likewise i guess oil changes and looking after it are important . Ill try drive a 3.6 and see what i think of it... yes a big step up from the old TD6 regardless which i have had two of now,

The RPM at 100ks and economy sounds good, better than i might have thought... Interesting to see how yours goes as the k's climb, My TD6 has 450 thousand ks on it and other than the odd injector or two failing has been very good but recently seems to be getting lots of blow by or something and i have had the engine run on on it's own engine oil which is very scary i can assure you.. compression test later this week to try find out what it really needs

Yes the last of the 3.6 has the computer type dash display and maybe a few other differences.. not sure, i think the main feature here is the updated front end which i really do like

One 3.6 i looked at about a month ago which since sold was an AB and had the electric controlled magnetic shock absorbers.... im also wondering what they are like durability wise if i ended up with them considering some of the cars are well into the 100k plus k's mark

Dave

GraemeS wrote:

I don't like the 8-speed in my 4.4 compared with the rebuilt 6-speed that was in my 3.0 D4 due to too much torque converter slip and requiring too much throttle and resultant engine revs to get moving off the mark faster than crawling. It does however get better economy than my 3.0 D4. I suggest a good drive of a couple of each.

Note that starting during MY08 and ending during MY12 the various 6-speed ZF gearboxes used by LR and many other vehicle brands were fitted with white-metal stator bushes that don't survive long oil changes and therefore require a premature rebuild. Oil changes at 80k kms max seems to be acceptable - my D4's 130K oil change was not, failing at 150K even though gentle country usage.

Interesting what you say about the 8 speed... likewise ill have to get to a dealer with one for sale and see what i think of the shifting... most reviews rave about the low end torque and "seamless shifts"

Very good point noted about the dual sump and drain components , And great info on the later ZF 6 speed.... i would sure change that oil at 80 thousand ks or prior , The ZF 6 speed is a huge step up from the GM box in the TD6



Dave

Bluegreygreen Rangie wrote:

Yes the last of the 3.6 has the computer type dash display and maybe a few other differences.. not sure, i think the main feature here is the updated front end which i really do like

One 3.6 i looked at about a month ago which since sold was an AB and had the electric controlled magnetic shock absorbers

The CVDs were optional in Oz for MY10 at least on the 3.6, only becoming standard here for MY11/12. An Oz 4.4 owner is about to replace his rear CVDs after nearly 80K kms that included some reasonably hard work and has discovered their significant cost, although cheaper but still expensive after market ones are available. However the ride is very good on secondary country roads and the reason why I upgraded from the 3.0 D4.

MY10 3.6 were fitted with (front) 2-piston sliding callipers which have been criticized by some owners as being inadequate. MY07-MY09 3.6 here had 4-pot Brembos and MY11/12 4.4 had 6-pot Brembos (5.0 NA still 2-piston sliding). However I recently read a similar criticism from a US writer about the current base L405 which also has 2-piston sliding callipers.

There is no comparison between the 3.6 and the 4.4 and the overall spec of the respective model years, it's like night and day - drive the two back to back and the difference is huge. You need to drive one - that will crystallise the decision for you.

The gearbox is fantastic - yes it does hesitate very slightly on drive take up from a standstill - but I just drive in sport mode around town and it gets over this very minor issue.

The engine is far quieter and she is only doing 1k revs at 50 in top. 35 mpg is achievable if you stick to the limits. As for the power delivery - it doesn't give up - 70 to 90 is startling when you stamp your foot 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Trommel wrote:

Can't think of a reason why you'd choose 3.6 over 4.4.

Other than the 20k reasons already stated

Coming from a TD6, you're going to be very happy with a 3.6 - and yes, the 4.4 is better, but 20k is 20k......

I cant seem to do multiple quotes on here... mind oyu i see i put up an unnesasary " one some how, Anyway im sure you will all be watching this thread


Trommel - From what i can see not all the face lift cars do have the adaptive dampers but was optional, The Ab seems to have them standard. Ill do research on these as to lifespan and replacement cost, Be nice to have but no deal breaker

4.4 ones keep popping up from dealers all but same price as people want for 3.6 so as long as that pattern continues ill look towards the 4.4, Either way ive decided only on the My2010 updated vehicle


GraemeS - Ill check out the costing on the parts vs std dampers ,And thank you as i had completely forgot the brake variations in these models, Its another reason why a 4.4 if about the similar cost makes even more sense with such over rated brakes , just nice to know you have them . This car will be a keeper for some years so makes sense to think about all these things also


Vogue - I am going to test drive both cars real soon, Ill report back with my thoughts , I love the low rpm!!, Mind you 1700 for the 3.6 is not too bad either, Hey currently my TD6 does more like 2200


Alistair - Yes if there is 15-20k in the price then that could be a decider for me also




Dave

Compomotive 18" rims don't fit over the 4.4's brakes. Therefore if needing decent tyres for outback touring then there is only one 19" LT currently available (Maxxis, very recently released) otherwise oversize 20" various brands.

My 2008 3.6 has the better Brembo set up and as such 18" wheel's won't fit that either, it's not just the 4.4's they don't fit  Is this where I put the car details and a bit about myself ?........

Last edited by n1cktdv8 on 30th Jun 2016 10:57am. Edited 1 time in total

Compromotives fit my 2008 3.6. ______________________________
Vogue tdv8 08MY poverty pack - wow

I currently run 20"ATR Scorpions 275/55R 20 , This slightly larger than stock diameter i find means i can have the 20" wheels which although not practice everywhere do suite the large Rangie yet still gives me some proper side wall height for off road type situations. I never really considered a LT tire but the pereilli so far have been fantastic... very well wearing and little to no noise given they are a true AT tire, They have not been off road as much as i would have liked so perhaps i could be very wrong but i do feel they would be trustworthy off the beaten track in the middle of no wear

Looks like they have a 20" LT too but its very wide and tall

https://www.pirelli.com/tyres/en-ww/car/fi...#/overview



Dave