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Old 9th February 2019, 20:34   #1
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Default Interms of reliability and overall performance which is the best engine

For myself without doubt the 135CDTI. Superb engine in both examples that I own - one with 262,000 miles and the other with 120,000 miles. I do about 25,000 miles pa in the current 05 plate.


Followed by the 4.6l ZT 260 which I have had for eight years and apart from the replacement compressor it has been no problem.


Next in line is a ZT 190 which I have had for five years and no problem.


Bringing up the rear was the 75 1.8Ti Conti - now replaced by a very reliable 400 1.6l

Last edited by 2750 HP; 9th February 2019 at 20:42..
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Old 9th February 2019, 21:01   #2
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Have to agree that the Diesel is a superb engine made even better by the 160 Re-Map 182974 miles and still going well


Next is the K series 1.8 at 94K followed by the K series 1.4 at 98K..all running well....I shall now run off to find some wood to touch..
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Old 9th February 2019, 23:59   #3
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You've opened up a can of worms here!

The diesel probably offers the best balance of reliability/performance/economy but having had two and now a 1.8T, I prefer the petrol. The worst I would say is the 2.0V6 which, though refined, is slow and thirsty.
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Old 10th February 2019, 08:51   #4
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Quote:
Originally Posted by LeRich View Post
The worst I would say is the 2.0V6 which, though refined, is slow and thirsty.
Just like me, which is probably why I like it! None of those quart in a pint pot turbos, no stinky diesels, just press the pedal and it goes.... and goes.... and ....
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Old 10th February 2019, 09:26   #5
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Do people ever wonder why it is always diesel owners that start and mostly contribute to these posts?

Perhaps due to a need to prove (or disapprove) something?

For me, the order would be as follows, taking account of the character of the car in which the engine is fitted.

1. 1.8k/1.8T

2. V6

3. Diesel (I actually own one, so not biased against diesels)

The V8 is in a specialist category on its own - if you own one, it will be the best. If you don't you will either dream of owning one or will constantly argue that the diesel is more powerful!

I posted on a similar topic a few years ago here.

https://the75andztclub.co.uk/forum/s...7&postcount=30
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Old 10th February 2019, 10:30   #6
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Quote:
Originally Posted by mss View Post
Do people ever wonder why it is always diesel owners that start and mostly contribute to these posts?

Perhaps due to a need to prove (or disapprove) something?

For me, the order would be as follows, taking account of the character of the car in which the engine is fitted.

1. 1.8k/1.8T

2. V6

3. Diesel (I actually own one, so not biased against diesels)

The V8 is in a specialist category on its own - if you own one, it will be the best. If you don't you will either dream of owning one or will constantly argue that the diesel is more powerful!

I posted on a similar topic a few years ago here.

https://the75andztclub.co.uk/forum/s...7&postcount=30
I had/have 3 K engines:

- 214Gsl (my parents') from new, moved to LPG in 2000 who lasted 24 years (unfortunately broken in a collision) - NO problem at all but snail-like & comparatively thirsty.

- very good condition first hand 25 1.4 bought in 2015 57k km (35k mls) lots of mods including a SAWS Tuning remap I'm delighted of & an E85 kit, very responsive, loves corners, uphill & downhill, equivalent now to a 1.6 - NO problem at all (no corrosion, no HGF), works a treat!

- my lovely 75 V6 2.5 Connie Cowley built, bought in 2017 157k km (98k mls), not so cared for before but now all is mint (new VIS motors among the whole lot) with a good amount of quids and every week TLC, now fuelled with E85 with some home made very efficient mods, very powerful, responsive, quiet, comfy, luxurious, NO problem so far (fingers crossed & all the like), a very bliss!

I don't care if the latter is a bit thirsty, I'm not mean & tight, it's the price to pay to go large & big & run authentically British...
Maybe a 1.8T might have been a good economical choice, but no comparison with a jolly efficient V6...

I know that diesel may be reliable & are generally long lasting vehicles: but diesel now is out of fashion here (mind you I'd 2 Peugeot diesel as well in the past), more & more banned from towns, and mainly that stinks & the noise isn't that nice!
BUT I don't want at all to look harmful & offensive to my fellow MG Rover addicts who chose diesel, it's not at all my purpose. Each on their own as they say. I was only telling here my own personal truth, no more.
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Old 10th February 2019, 19:29   #7
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KV6 because it doesn't sound like a diesel
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Old 10th February 2019, 00:39   #8
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I think the general consensus is that the 2.0 diesel is the best engine in terms of reliability - Mine has been pretty flawless so far, i've not had any mechanical problems, but then again it's only on 70K miles, and I've only owned it for 3 of those 70 thousand. It's not too slow either, I recorded a 0-60 time of 10.3 seconds, I think the official is around 10.6 (So i'm not sure what was going on there) and mine's not been remapped. It's perfectly respectable, but aside from a remap and a performance air filter and some intake mods, I'm pretty sure that there's not too much potential for tuning. As for performance, obviously the 4.6 is the best, and you can whack a supercharger on it to increase power to something like 400HP, but aside from that, i've heard the 1.8 has a few modifications able to be done that can increase power to over 200HP, which is pretty decent.


That being said, i've never owned any other MG Rover cars aside from the one I have now, so I can't comment on the reliability of the other engines.
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Old 10th February 2019, 00:46   #9
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The diesel is normally perceived as the most reliable as it is seen to rack up the miles, as it happens its probably the version that needs the most maintenance!

Underbonnet fuel pump.
In tank fuel pump.
Wet ECU.
Injector leakback.
High pressure pump leaks.
Failing thermostat.

Apart from that, they are not too bad
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Old 10th February 2019, 01:25   #10
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A remapped 1.8T will see off all the others bar the V8. They are surprisingly quick actually (especially in the cold), and it obviously weighs less too which also helps including in the twisties.

I've owned three K-series engines over the last 15 years, never had any real issues at all. I really cannot understand how some people apparently have so many problems with them.

I also have a T-series, which is OK, but it's a heavy lump and constantly leaks oil out of somewhere.
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