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Old 04-06-2012, 21:29   #1
tim008
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Diesel vs Petrol

I'm sure there's been plenty of these threads put up over the time. But I wanna ask:

Would a 2.0l TD ZR, be more economical than my 1.4l R25?

And I bet there is a much more complex answer than yes or no.

I do a 30 mile round trip each day which is about 80% A roads @ 50-60mph.
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Old 04-06-2012, 21:31   #2
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Yes, I would have thought so.
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Old 04-06-2012, 21:36   #3
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Yes, the diesel will be much more economical. The diesel you have allot of torque, you do not need to thrash the diesel unlike the 1.4. I learned to drive in a MG ZR TD and I found it a much more relaxing car to drive, I could change gear at low revs and still have plenty of poke. My 25 1.4 103PS is much slower, I often have to take it to 3500k - 4000k+ to keep up with traffic or get up to speed on a slip road etc. Due to that it does like to drink the fuel, 240 ish miles on 3/4 tank is not brilliant to be honest. If I had the money I would get rid of my car & get a diesel now, the engine is much better I think. The power delivery is better, it revs lower for the same effort and strangely at 70MPH the diesel is quieter I found with no annoying droning/boomy noise like the K series makes. Go for a diesel I say .
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Old 04-06-2012, 21:41   #4
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Yes, the diesel will be much more economical. The diesel you have allot of torque, you do not need to thrash the diesel unlike the 1.4. I learned to drive in a MG ZR TD and I found it a much more relaxing car to drive, I could change gear at low revs and still have plenty of poke. My 25 1.4 103PS is much slower, I often have to take it to 3500k - 4000k+ to keep up with traffic or get up to speed on a slip road etc. Due to that it does like to drink the fuel, 240 ish miles on 3/4 tank is not brilliant to be honest. If I had the money I would get rid of my car & get a diesel now, the engine is much better I think. The power delivery is better, it revs lower for the same effort and strangely at 70MPH the diesel is quieter I found with no annoying droning/boomy noise like the K series makes. Go for a diesel I say .
I'm changing at around 3000 - 3500k.

To get up this hill i live at, i have to keep it in 3rd @ 40mph, and if i slow or loose momentum, i'm buggered. Even harder if i have a car full. This is why i'm looking more towards a diesel.
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Old 04-06-2012, 21:44   #5
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You should easily be getting 350-400+ miles to a tank in the 1.4.

If you are 4 up often then a diesel would make sense.
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Old 04-06-2012, 21:47   #6
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Originally Posted by tim008 View Post
I'm changing at around 3000 - 3500k.

To get up this hill i live at, i have to keep it in 3rd @ 40mph, and if i slow or loose momentum, i'm buggered. Even harder if i have a car full. This is why i'm looking more towards a diesel.
I have the same issues going up hills at all, I found in the ZR I could keep it in 4th and still keep a bit of momentum & have quite a bit of boost if I ever rarely dropped down a gear. The diesel is a much harder car to stall, the clutch has more bite I found and it would just pull away with ease. Have a test drive and see what you think.
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Old 04-06-2012, 21:47   #7
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You should easily be getting 350-400+ miles to a tank in the 1.4.

If you are 4 up often then a diesel would make sense.
I got 270 out of about 40 in my 1.4 over the past couple of weeks.


Huh
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Old 04-06-2012, 21:49   #8
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The R25 1.4 petrol should achieve high 30s mpg, the diesel driven in a similar fashion will probably return 60+ mpg.

It isn't always quite that simple though as the diesel will require more frequent servicing (for example, MG Rover recommended 12 000 miles between oil changes on the diesel, but 15 000 miles for the petrol).
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Old 04-06-2012, 21:49   #9
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I have the same issues going up hills at all, I found in the ZR I could keep it in 4th and still keep a bit of momentum & have quite a bit of boost if I ever rarely dropped down a gear. The diesel is a much harder car to stall, the clutch has more bite I found and it would just pull away with ease. Have a test drive and see what you think.
My missus is going to apply to get PPI back, so.....

I'm not sure whether to get a slightly damaged ZR from a salvage place like copart.
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Old 04-06-2012, 21:51   #10
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You should easily be getting 350-400+ miles to a tank in the 1.4.

If you are 4 up often then a diesel would make sense.
Yes it is easily possible, but that means not keeping up with the flow, holding other traffic up behind you. Where I live there are lots of traffic lights, if you accelerate slow you are ******, they change super quick. That said 240 ish miles is not too bad on 3/4 tank considering I live in a busy city I suppose, but its very frustrating and tiring to drive. I want a diesel so bad so I don't need to go 4 up .
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Old 04-06-2012, 21:52   #11
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My missus is going to apply to get PPI back, so.....

I'm not sure whether to get a slightly damaged ZR from a salvage place like copart.
Go for it, damaged cars can become bargains, I bought mine as a Cat C from a company for 250, spent allot of money on it, but it is low mileage at 51k (now 52k). MG ZR TD prices are not that high to be honest though.
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Old 04-06-2012, 21:53   #12
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Originally Posted by Man in the Car View Post
The R25 1.4 petrol should achieve high 30s mpg, the diesel driven in a similar fashion will probably return 60+ mpg.

It isn't always quite that simple though as the diesel will require more frequent servicing (for example, MG Rover recommended 12 000 miles between oil changes on the diesel, but 15 000 miles for the petrol).
Diesel doesn't need spark plugs though, a few quid off the list and the difference is very little. They are also less likely to develop any issues, no coils, HT leads etc.
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Old 04-06-2012, 21:57   #13
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Quote:
Originally Posted by Steven211 View Post
Diesel doesn't need spark plugs though, a few quid off the list and the difference is very little. They are also less likely to develop any issues, no coils, HT leads etc.
Even less likely to suffer HGF either

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Old 04-06-2012, 21:57   #14
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Diesel doesn't need spark plugs though, a few quid off the list and the difference is very little. They are also less likely to develop any issues, no coils, HT leads etc.
I learnt to drive in a diesel. He had a 1.2 petrol corsa courtesy car, that was a real POS. No power at all.
Its the uphill torque i mainly want it for, and well i want a ZR

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so I don't need to go 4 up .
What does that mean?
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Old 04-06-2012, 21:57   #15
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Even less likely to suffer HGF either

Cheers
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Yep indeed, and one other thing I forgot, the tax is cheaper .
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Old 04-06-2012, 21:58   #16
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Yep indeed, and one other thing I forgot, the tax is cheaper .
Is it? Its 71.50 for 6 months, for my 1.4.
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Old 04-06-2012, 21:59   #17
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I learnt to drive in a diesel. He had a 1.2 petrol corsa courtesy car, that was a real POS. No power at all.
Its the uphill torque i mainly want it for, and well i want a ZR


What does that mean?
It means above 4000 RPM. Haha I started learning in a 1.2 Corsa C SXI, then instructor changed to 1.2 Corsa D SXI, then I moved back down south and passed my test in ZR TD. I actually picked the instructor because of the ZR. I hated the Corsas, ditchfinders I call them, no steering feel to the point of being dangerous and as you say no power at all, really slow.
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Old 04-06-2012, 22:04   #18
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350 to 400 out of a 1.4 my god that 40 - 45 mpg id hate to think how hard it would be to drive that slow i get around 35-37 average
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Old 04-06-2012, 22:04   #19
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Is it? Its 71.50 for 6 months, for my 1.4.
Blimey yours is somehow cheaper than mine, could be due to the age. I paid 170 for 12 months and it is 93 for 6 months I think on a Y plate. ZR TD tax is here...


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Old 04-06-2012, 22:06   #20
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Originally Posted by Man in the Car View Post
The R25 1.4 petrol should achieve high 30s mpg, the diesel driven in a similar fashion will probably return 60+ mpg.

It isn't always quite that simple though as the diesel will require more frequent servicing (for example, MG Rover recommended 12 000 miles between oil changes on the diesel, but 15 000 miles for the petrol).
50-55mpg from a diesel maybe, but 60 is a pipe dream for most people. i drove like a nun for two weeks and got about 57mpg. this was gentle acceleration and 50mph cruising on the motorway in the middle of summer.

i think only a couple of people have ever scraped 60mpg.
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