Big engine & short journeys
Big engine & short journeys
Author
Discussion

PKLD

Original Poster:

1,163 posts

262 months

Saturday 19th November 2011
quotequote all
So this weekend she is planning to get a 350z. She was bored by the thought of a quattro TT, 320V6 SLK, but she also didn't like the cayman.

She has always liked the look of a 350z and know we've seen the price of them she is convinced. We've found a very clean '07 z in grey (or dark silver?) with 19k miles. Now the only thing that concerns me is that it must have only been used for short journeys as the drivers seat is showing signs of wear on the base so it matches it's age but not it's miles if that makes sense?

Does the 350z shrug off short journeys due to it being n/a rather than turbos that dislike short journeys for example?

Plus any pointers would be great! Looking forward to borrowing my mum's car again!

And mods I know I've posted this in the jap chat but GG may give more answers! Thanks

sparks_E39

12,738 posts

234 months

Saturday 19th November 2011
quotequote all
I do 6 miles each way to work in my E39 528 which takes 10-15 minutes.. it's fine. I try to take it on a 50 mile blast every couple of weeks.

rumple

13,002 posts

172 months

Saturday 19th November 2011
quotequote all
sparks_E39 said:
I do 6 miles each way to work in my E39 528 which takes 10-15 minutes.. it's fine. I try to take it on a 50 mile blast every couple of weeks.
id agree, give it a run out once in a while, must say i love the 350 but need 4 seats

redgriff500

28,982 posts

284 months

Saturday 19th November 2011
quotequote all
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.

So personally I'd rather buy a cheaper one with 50k if you know the 19k has mostly been short trips.

# Lord Lucan #

234 posts

212 months

Saturday 19th November 2011
quotequote all
en running a 2.5 V6 Mondeo for about 3 years now and do max of 5 miles a day no issue whatsoever just service it as per the manual and if you want total peace of mind bung an oil and filter change in every 6 months for good measure it will be fine

Jw Vw

4,900 posts

184 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.

So personally I'd rather buy a cheaper one with 50k if you know the 19k has mostly been short trips.
This.

elementad

625 posts

171 months

Saturday 19th November 2011
quotequote all
If you've found one with that low mileage that looks looked after and has the full Nissan service history then you'd be daft to dismiss it and go for a high mileage example.

As long as its been serviced well and looked after then your laughing.

Who's to say high mileage cars haven't been thrashed to buggery or taken on track every wknd. It's a pointless discussion.

All you can go off is the service book, the mileage and how it looks.

DanielC4GP

2,792 posts

172 months

Saturday 19th November 2011
quotequote all
Does it have a service history or MOT history to back-up the mileage. Also how does the steering wheel look, does it look warn like the seat.

As a lot have said, mileage shouldn't be the priority the overall condition of the car and history should be.

I'd be more concerned about a seat showing wear at only 19,000 miles though. It may just be totally innocent and it's just had a fat person stuck in traffic most it's life. However if the steering wheel is also warn and it has no history I think personally I'd be walking away.

Deva Link

26,934 posts

266 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.

So personally I'd rather buy a cheaper one with 50k if you know the 19k has mostly been short trips.
Is that true?

The one with 50K may have been started from cold the same number of times - that's the critical issue, surely? So if they're both used mainly for every day commuting, but one is doing a longer journey than the other, what's the difference?

Debaser

7,442 posts

282 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.

So personally I'd rather buy a cheaper one with 50k if you know the 19k has mostly been short trips.
A short journey of five minutes causes exactly the same amount of wear to an engine as the first five minutes of a long journey.

redgriff500

28,982 posts

284 months

Saturday 19th November 2011
quotequote all
Debaser said:
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.

So personally I'd rather buy a cheaper one with 50k if you know the 19k has mostly been short trips.
A short journey of five minutes causes exactly the same amount of wear to an engine as the first five minutes of a long journey.
Yes... so they are AS worn yet one will be substantially cheaper.

fwaggie

1,644 posts

221 months

Saturday 19th November 2011
quotequote all
Deva Link said:
Is that true?

The one with 50K may have been started from cold the same number of times - that's the critical issue, surely? So if they're both used mainly for every day commuting, but one is doing a longer journey than the other, what's the difference?
This.

If the engines started from cold the same number of times, go for the low mileage one. The exhaust / cat will probably have suffered more, but I'd rather have those easily and cheaply replaceable items go wrong than the engine go pop or start to smoke like a chimney.

Deva Link

26,934 posts

266 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
Yes... so they are AS worn yet one will be substantially cheaper.
..OK, but that's not what you said. wink

I think as fwaggie points out there are other issues with short journeys but wear of the engine isn't one of them. I'd want to be sure the oil have been changed regularly though - condensation builds up in oil that never gets properly hot.

redgriff500

28,982 posts

284 months

Saturday 19th November 2011
quotequote all
Deva Link said:
redgriff500 said:
Yes... so they are AS worn yet one will be substantially cheaper.
..OK, but that's not what you said. wink

I think as fwaggie points out there are other issues with short journeys but wear of the engine isn't one of them. I'd want to be sure the oil have been changed regularly though - condensation builds up in oil that never gets properly hot.
Erm its precisely what I said.

redgriff500 said:
So personally I'd rather buy a cheaper one with 50k

Deva Link

26,934 posts

266 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
Erm its precisely what I said.
No - you said:
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.
..which isn't true. The initial wear will be the same, then after the point at which the shorter journey would end, longer journeys must cause more wear, because the engine is running for longer.

redgriff500

28,982 posts

284 months

Saturday 19th November 2011
quotequote all
Deva Link said:
redgriff500 said:
Erm its precisely what I said.
No - you said:
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.
..which isn't true. The initial wear will be the same, then after the point at which the shorter journey would end, longer journeys must cause more wear, because the engine is running for longer.
Nope.

They ran a CBR engine to high mileage on a test bed - so only one cold start. After they took it apart and measured everything for wear.

They found NO measurable wear on anything.

Modern engines and modern oils are incredible EXCEPT when they are cold.

Debaser

7,442 posts

282 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
Deva Link said:
redgriff500 said:
Erm its precisely what I said.
No - you said:
redgriff500 said:
As everyone knows short journeys cause far more wear (to the engine at least) than longer ones.
..which isn't true. The initial wear will be the same, then after the point at which the shorter journey would end, longer journeys must cause more wear, because the engine is running for longer.
Nope.

They ran a CBR engine to high mileage on a test bed - so only one cold start. After they took it apart and measured everything for wear.

They found NO measurable wear on anything.

Modern engines and modern oils are incredible EXCEPT when they are cold.
Who is 'They'?

Nick3point2

3,920 posts

201 months

Saturday 19th November 2011
quotequote all
Worn seat at 19k screams clocked to me. Or, badly looked after, with genuine mileage, either way, I'd much rather see a well looked after car with normal mileage.

Deva Link

26,934 posts

266 months

Saturday 19th November 2011
quotequote all
redgriff500 said:
Nope.

They ran a CBR engine to high mileage on a test bed - so only one cold start. After they took it apart and measured everything for wear.

They found NO measurable wear on anything.

Modern engines and modern oils are incredible EXCEPT when they are cold.
You're not getting this. The results would have been the SAME (or better) if they'd only run it for 5 mins. It doesn't wear LESS because they ran it for LONGER.

T84

6,941 posts

215 months

Saturday 19th November 2011
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Don't ECUs on cars log number of cold starts yet? I can't see it being a bad idea...