Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: rockindave on 15 January 2015, 13:36:42

Title: Omega 2.5 diesel
Post by: rockindave on 15 January 2015, 13:36:42
Hi all I've been offered a 2.5 diesel for a straight swap for my MV6 2.6 am I doing the right thing if I swap as I'm looking to lesson my monthly outgoings ie fuel + ins cheers in advance
Title: Re: Omega 2.5 diesel
Post by: 0795omega on 15 January 2015, 13:51:43
i had a diesel one once,didnt think it much better on mpg to be honest,and certainly not as quick,but your choice bud!
Title: Re: Omega 2.5 diesel
Post by: Shackeng on 15 January 2015, 16:13:40
My chipped TD Auto only does about 25 on local runs, 33 on motorway journeys. Manuals are much better on fuel, just a pita to have to drive. ::)
Title: Re: Omega 2.5 diesel
Post by: tidla on 15 January 2015, 16:28:19
Test drive it first, then your mind will be made up for you.
Title: Re: Omega 2.5 diesel
Post by: Diamond Black Geezer on 15 January 2015, 16:36:23
Currently run one, and can't wait to get my V6 going again - as most OOFers can testify to, as I mention it in every other post  :D

Ok, for me I'd say good and bad...

V6
-Romance "I have a V6 quad cam 24v, don't you know"
-Throaty burble or sewing machine hum when you want it.
-Acceleration. mmmmm
-Actually decent mpg for what is it - partially as Vx deliberately made this engine 'understressed' and better at mpg than bhp. Not that powerful for an engine of this size.
-Bit 'delicate' in areas.  Several very minor issues that have a nasty habit of biting you unexpectedly and causing engine not want make happy brum-brum noise anymore - shortlist eg: ... crank sensor, timing belt, breathers > rocker gaskets > fill plugwells > short HTs > stuffed Coilpack, timing belt/pulley.


Turbo Weasel
-No-one really cares (aside from OOFers and Clarkson) that it's powered by the Devils juice. over 50% of new cars are diesel powered now.
-Blunt, rugged engineering. To be honest, in terms of reliability, I'd say there are three or four times as many V6 going wrong as there are the ex-BMW oil burner. I'm really not looking after mine as well as I should be, I know the oil's low, there's something wrong with the idle, massive drain when I use anything like heated rear window etc. - possible alternator going duff. But it still gets me home, albeit with a grumble.
-Thin film of black dust over EVERYTHING. Can't even check the washer fluid without having to wash my hands three times aftwerward  ;)
-Economy. Being a diesel you can try pushing the noisy pedal through the floorpan, or drive like a nun with piles and to be honest it always returns about 25mpg. Which is about the same as the V6... but if you drive the V6 like you stole it, that mpg collapses to the teens.
-Still shifts if you want it to. Haven't been beaten off the lights yet in the Turbo Weasel. It does surprise boy racers. Especially as mine looks like an advert for the scrappage scheme.


So... hmmm, 'conclusion' - Ultimately, of course, it's your call, always will be. My insurance company gave me a lower quote for the more powerful, faster V6, amazingly.  :o Compare what each car offers, not just the engine - are they the same spec? MV6s (sometimes) don't have that much kit, to be honest, and without teaching you to suck eggs, mileage, overall condition, service history, tyres tread even. I'm ignoring the Weasel's issues in order to get the V6 back on the road as soon as I can, and soon as I do, the Weasel will be either sold for pence to an OOFer to strip and scrap, or webuyanycrap.com will be getting a call.

Title: Re: Omega 2.5 diesel
Post by: zirk on 15 January 2015, 16:56:04
Ive had 3 all Estates, 2 x Autos and one Manual, they all died of economical repair in the end, The one that did stand me well was the Manual, (they need to be Manual to save on running cost), was used as a Works Van effectively carried all sorts of heavy Tat around plus Roof Box, Ladders etc.

I could .get (fully loaded) 34 mpg in and out and around London and about 42 mpg on a run without trying. Empty with just me and driving careful I could hit the magic 50 mpg on a long run.

In my book, there good work horses with 2.5 BMW Lumps, abeit a bit under powered compared to the same Lump in a real BM, although a £70 Chip can sort that,  definitely needs to be Manual if your after the MPG benefit, test drive it first, some are dogs with poor maintenance, Other option get or fined a V6 with LPG.
Title: Re: Omega 2.5 diesel
Post by: rockindave on 15 January 2015, 19:16:17
Thanks guys I'll probably stay with mine then after weighing up the pros and cons I don't think I'll be gaining anything fuel wise as mine does about 25 mpg around town about 35-40 on a run 👍
Title: Re: Omega 2.5 diesel
Post by: relluf on 15 January 2015, 20:35:12
Over the last 1800 miles my manual estate, fully loaded all the time with all my tools ladders etc has returned according to the read out 38 mpg ,I quite often achieve 45/47 on the motorway /dual carriage way sometimes even hit 50mpg.
You do need to drop the oil on a regular basis apart from that its almost bullet proof.
Not chipped but its no slouch!!
HTH
Title: Re: Omega 2.5 diesel
Post by: rockindave on 15 January 2015, 21:17:02
Over the last 1800 miles my manual estate, fully loaded all the time with all my tools ladders etc has returned according to the read out 38 mpg ,I quite often achieve 45/47 on the motorway /dual carriage way sometimes even hit 50mpg.
You do need to drop the oil on a regular basis apart from that its almost bullet proof.
Not chipped but its no slouch!!
HTH
Oooh Now you got me thinking again 😞
Title: Re: Omega 2.5 diesel
Post by: Keith ABS on 16 January 2015, 07:41:42
I had a year 2000 auto 2.5 estate in Opel trim. Didn't chip it as you need to change the gearbox first but IT was achieving 33_34 mpg overall. Mine did have a high diff, 3000 rpm was 93 mph

Keith B
Title: Re: Omega 2.5 diesel
Post by: Diamond Black Geezer on 16 January 2015, 10:06:10
Should add, as mentioned above, a magic-feeling '50 at 50', so 50mpg at 50mph, which is something a V6 could only dream of. It is a nice feeling, if you are prepared to sit at a bit of a crawling pace, behind an HGV on the motorway/dual carriageway, for instance. Went on holiday to Harrogate last year and couldnt believe that after getting there how much was still left in the tank. Literally doing double-to-the-gallon what I was used to round town.

Currently my Weasel's name is mud, as the ignition barrel has jammed this morning, costing me a week's fuel budget in a taxi fare to work  >:( >:( But I confess that that's not really unique to Diesels, but all Omegas.  ::)
Title: Re: Omega 2.5 diesel
Post by: Goldy on 16 January 2015, 10:30:15
I loved mine.
Title: Re: Omega 2.5 diesel
Post by: firemoth on 16 January 2015, 10:38:52
I hate mine at the minute. It's not being nice to me....
Title: Re: Omega 2.5 diesel
Post by: Diamond Black Geezer on 16 January 2015, 10:50:09
I hate mine at the minute. It's not being nice to me....

Ditto!!!  ;D
Title: Re: Omega 2.5 diesel
Post by: TheBoy on 17 January 2015, 10:45:52
In standard form, the 2.5TD is a dog of a motor. Far too sluggish.  Chipped, its a decent motor, though still not a V6 beater.

Avoid the TD autos, its not a good combination for economy, and you're going diesel for economy.  As much as the Omega's manual box annoys me, manual is the only viable option for a TD.

I miss my old (auto) chipped TD Elite, it was a lovely motor, despite its "issues" when I bought it (a long running forum saga from 6 or 7 years ago ;D), I was a first class prat to sell it  :-[, but it went to a good home with another OOF owner, and served them well until they part-ex it for a people carrier IIRC.

The TD, though, when it lets go, it does so quite spectacularly. Oil changes every 3k are essential.
Title: Re: Omega 2.5 diesel
Post by: Shackeng on 17 January 2015, 12:34:02
In standard form, the 2.5TD is a dog of a motor. Far too sluggish.  Chipped, its a decent motor, though still not a V6 beater.

Avoid the TD autos, its not a good combination for economy, and you're going diesel for economy.  As much as the Omega's manual box annoys me, manual is the only viable option for a TD.

I miss my old (auto) chipped TD Elite, it was a lovely motor, despite its "issues" when I bought it (a long running forum saga from 6 or 7 years ago ;D), I was a first class prat to sell it  :-[, but it went to a good home with another OOF owner, and served them well until they part-ex it for a people carrier IIRC.

The TD, though, when it lets go, it does so quite spectacularly. Oil changes every 3k are essential.

I disagree. For outright performance and economy maybe, but I find my chipped auto Estate, which I've had for 15 years,a very pleasant car to drive. (I also have a 3.2 Elite saloon). TB is well known as an  'enthusiastic' driver, but not everyone is. ::) :y
Title: Re: Omega 2.5 diesel
Post by: Magwheels on 17 January 2015, 13:34:33
I too loved my old 2.5 td auto estate and although not the fastest thing I have ever driven easily kept with town traffic and on the motorway overtook most due to the low gearing and reasonable mpg at speed. The only reason I got rid of it to be honest was that I had had it for 9yrs, it was getting tatty body wise and I fancied a later one. I then found out it was nigh on impossible to find exactly what I wanted so I settled for the 2.2Dti I have now which although not as smooth beats the 2.5td for mpg hands down.
Title: Re: Omega 2.5 diesel
Post by: relluf on 17 January 2015, 18:25:57
In standard form, the 2.5TD is a dog of a motor. Far too sluggish.  Chipped, its a decent motor, though still not a V6 beater.

Avoid the TD autos, its not a good combination for economy, and you're going diesel for economy.  As much as the Omega's manual box annoys me, manual is the only viable option for a TD.

I miss my old (auto) chipped TD Elite, it was a lovely motor, despite its "issues" when I bought it (a long running forum saga from 6 or 7 years ago ;D), I was a first class prat to sell it  :-[, but it went to a good home with another OOF owner, and served them well until they part-ex it for a people carrier IIRC.

The TD, though, when it lets go, it does so quite spectacularly. Oil changes every 3k are essential.


Each to their own i guess but i disagree, I am not a boy racer(not saying TB is either)but each have different expectations mine is essentially my works van and it performs that function very well and I dont think I hold anybody up on the road!
Title: Re: Omega 2.5 diesel
Post by: Shackeng on 17 January 2015, 22:49:01
In standard form, the 2.5TD is a dog of a motor. Far too sluggish.  Chipped, its a decent motor, though still not a V6 beater.

Avoid the TD autos, its not a good combination for economy, and you're going diesel for economy.  As much as the Omega's manual box annoys me, manual is the only viable option for a TD.

I miss my old (auto) chipped TD Elite, it was a lovely motor, despite its "issues" when I bought it (a long running forum saga from 6 or 7 years ago ;D), I was a first class prat to sell it  :-[, but it went to a good home with another OOF owner, and served them well until they part-ex it for a people carrier IIRC.

The TD, though, when it lets go, it does so quite spectacularly. Oil changes every 3k are essential.


Each to their own i guess but i disagree, I am not a boy racer(not saying TB is either)but each have different expectations mine is essentially my works van and it performs that function very well and I dont think I hold anybody up on the road!

 8)
Title: Re: Omega 2.5 diesel
Post by: TheBoy on 18 January 2015, 11:10:58
I'll concede I too loved my TD auto, once chipped. But we buy diesels for economy, and the autobox kills that.

It's well known I hate the Omega manual box with venomous passions, but I think its the best combo for TDs :)

I worked it out at the time, fuel and servicing costs, there was very little between my 3.0l auto MV6 (pre lpg days) and my 2.5TD auto Elite (chipped, so economy improved over standard). That was one reason my head said to sell. My heart always said different  :'(
Title: Re: Omega 2.5 diesel
Post by: Shackeng on 18 January 2015, 12:23:10
I'll concede I too loved my TD auto, once chipped. But we buy diesels for economy, and the autobox kills that.

It's well known I hate the Omega manual box with venomous passions, but I think its the best combo for TDs :)

I worked it out at the time, fuel and servicing costs, there was very little between my 3.0l auto MV6 (pre lpg days) and my 2.5TD auto Elite (chipped, so economy improved over standard). That was one reason my head said to sell. My heart always said different  :'(

Interesting, mine seems worse, using brim to brim method, as the computer overreads when chipped. :y
Title: Re: Omega 2.5 diesel
Post by: TheBoy on 18 January 2015, 12:46:15
I'll concede I too loved my TD auto, once chipped. But we buy diesels for economy, and the autobox kills that.

It's well known I hate the Omega manual box with venomous passions, but I think its the best combo for TDs :)

I worked it out at the time, fuel and servicing costs, there was very little between my 3.0l auto MV6 (pre lpg days) and my 2.5TD auto Elite (chipped, so economy improved over standard). That was one reason my head said to sell. My heart always said different  :'(

Interesting, mine seems worse, using brim to brim method, as the computer overreads when chipped. :y
My 428's brim-to-brim method MPG increase from about 28mpg to about 32mpg when chipped.  MID read about 37-38mpg, as you say.
Title: Re: Omega 2.5 diesel
Post by: Magwheels on 18 January 2015, 14:51:03
I'll concede I too loved my TD auto, once chipped. But we buy diesels for economy, and the autobox kills that.

It's well known I hate the Omega manual box with venomous passions, but I think its the best combo for TDs :)

I worked it out at the time, fuel and servicing costs, there was very little between my 3.0l auto MV6 (pre lpg days) and my 2.5TD auto Elite (chipped, so economy improved over standard). That was one reason my head said to sell. My heart always said different  :'(

Interesting, mine seems worse, using brim to brim method, as the computer overreads when chipped. :y
My 428's brim-to-brim method MPG increase from about 28mpg to about 32mpg when chipped.  MID read about 37-38mpg, as you say.

That is a good reflective figure of real world numbers, mine always averaged (over hundreds of miles) around the 31 mark and that was with short and longs runs and most of the time me driving it as economically as I could without driving like a pensioner on holiday.

Always wanted to experience it chipped but didn't fancy changing the gearbox for the 35. I am getting lazy in my old age, when younger I would have changed anything for another 10BHP!! :y
Title: Re: Omega 2.5 diesel
Post by: TheBoy on 18 January 2015, 14:53:42
Always wanted to experience it chipped but didn't fancy changing the gearbox for the 35. I am getting lazy in my old age, when younger I would have changed anything for another 10BHP!! :y
Even unchipped, the AR25 will expire in the TD after about 120k, so you'll be shoving in an AR35 (or converting to manual) at some point ;)
Title: Re: Omega 2.5 diesel
Post by: Magwheels on 18 January 2015, 15:08:03
165k odd when I sold it and still perfect, gearbox wise, probably cos I was driving it like "driving Miss Daisy" but I just knew that if I chipped it (as I was sooo tempted) that it would most likely pop a week or so later and I would be in a world of hurt, grease and generally not happy.

What I really wanted was one of the last 2.5's, CDX or above with like you say a knackered gearbox so that I could get it at the right price and have the right reason to swap the box out, then chip it. Well one never turned up so I ended up with the Dti which to be honest has turned out to be a nice car now its had some tweeking. :)
Title: Re: Omega 2.5 diesel
Post by: TheBoy on 18 January 2015, 15:27:56
165k odd when I sold it and still perfect, gearbox wise, probably cos I was driving it like "driving Miss Daisy" but I just knew that if I chipped it (as I was sooo tempted) that it would most likely pop a week or so later and I would be in a world of hurt, grease and generally not happy.

What I really wanted was one of the last 2.5's, CDX or above with like you say a knackered gearbox so that I could get it at the right price and have the right reason to swap the box out, then chip it. Well one never turned up so I ended up with the Dti which to be honest has turned out to be a nice car now its had some tweeking. :)
Blimey, must be a reckon ;D :y

I did 3 in 20k :o
Title: Re: Omega 2.5 diesel
Post by: Diamond Black Geezer on 19 January 2015, 09:48:14
Can't say I have personal experience of a manual TD (as mine's an Auto) so can't say how much more mpg it would do, but as a car mine - goes, stops, warms my bum, plays my CDs, does 25 to the gallon on average (that's mostly town driving) and has given me much tail-out action when I want it (not that I could ever condone such actions)

However, I'm not massively convinced there's much between the Diesels and the V6 - remember when they were first made Diesel was half the price of petrol, so perhaps made more economical sense back then, compared with now.

When you get on a run, so cruising at 50-60mph, there's an appreciable difference in economy, but not enough to tempt me to keep my turbo weasel. Bring on six lovely cylinders at a beautiful 54o !!!  :y
Title: Re: Omega 2.5 diesel
Post by: TheBoy on 19 January 2015, 17:56:43
When you get on a run, so cruising at 50-60mph
Sorry, you lost me at that point....
Title: Re: Omega 2.5 diesel
Post by: 05omegav6 on 19 January 2015, 18:06:50
When you get on a run, so cruising at 50-60mph
Sorry, me lost you at that point....
Fixed :y

 ;D
Title: Re: Omega 2.5 diesel
Post by: Diamond Black Geezer on 20 January 2015, 10:21:36
 :D ;D :D

Having to drive to the next town because my girlfriend forgot her lanyard for Uni, literally a day after we'd been at hers and I said - "now just confirm you have with you everything, absolutely everything you'll need over the next few days, before we leave" ... so I have to offset that fuel cost wherever I can.  :y