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My way of driving and what it does to my car

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View Poll Results: This is my driving style
I drive hard, use full throttle and max revs - and have had no issues 25 6.08%
I drive hard, use full throttle and max revs - and have had problems 2 0.49%
I drive moderately hard and floor it from time to time - and have no issues 232 56.45%
I drive moderately hard and floor it from time to time - and have had problems 42 10.22%
I drive very gently, low revs and little throttle mostly - and all is OK 100 24.33%
I drive very gently, low revs and little throttle mostly - and have had problems 10 2.43%
Voters: 411. You may not vote on this poll

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Old Nov 28th, 2016, 20:22   #101
olliemayo
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What speed you drive at or what RPMs you are working in have utterly no bearing on reliability or longevity of the engine.

It is far far worse, to be doing very short journeys and pretending to be a 90 year old Sunday driver who never breaks 1500rpm.

Allow me to explain why.

If an engine is never worked hard, the engine oil never becomes hot enough to evaporate all the fuel and water that tends to accumulate in it. Secondly, the exhaust system, which has a pretty pants job in life, never gets hot either. 30 years ago, that didn't matter much because the car generally rusted to death about the same time as the mild steel exhaust system did. In a modern car, the exhaust system is home to catalysts and engine sensors. If these don't get hot and seared by hot exhaust gases, they coke up with soot and skank and basically begin to refuse to work.

I don't mind if you have a 3 cylinder 1 litre petrol, a V8 twin turbo diesel, or a V12 Ferrari, you must never cane an engine until the coolant and oil is up to temperature- as in the needle is where it normally lives. This means driving along steadily but keeping the revs low until the car is warmed.

Likewise, particularly with turbocharged engines, please don't drive home at 7000rpm, park on the drive and kill the car in an instant. Certainly never kill the engine from high RPMs (oil starvation of the turbo which is of course spinning at about 100,000 rpm), and for turbocharged engines it is best to let the car idle for a minute before turning it off, so the heat in that turbocharger is at least dissipated a bit. Not such issue these days with modern oils but there we go. Alternatively do what I do and cruise home the last few miles at low RPM so there isn't a huge amount of heat about anyway.

The one thing you need to do is get the thing serviced on the dot as recommended by the manufacturer. Oil and filter, if nothing else, just do this. Coolant out when the book says. It costs sod all in reality and they will check the brakes and other essentials at the same time.

People who are experiencing failures either have inherent manufacturing faults, excessive wear in various components (probably due to acting contrary to the above) or are causing stress in some way, the classic is by over-revving when people change down too soon and fling the engine above the red line- this is ill advised.

Modern cars and materials science is such that this is old hat today. Volvo like most makers have already built a car before yours and tested it to death in some terrible environment.

Go on an American car forum and see the simply astronomical mileages these guys attain. The fact their cars would never pass our MOT is secondary but I can't emphasise enough that generally today your average mechanic is not getting piston ring failures or head gaskets or big ends going when 30-40 years ago they were commonplace.

In fact I would go so far today to suggest that what kills most high mileage cars today is uneconomic repairs or corrosion (although even that is much reduced today).
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Old Nov 30th, 2016, 15:59   #102
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What is "worked hard" can I enquire? Also "low revs"?
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Old Sep 9th, 2017, 23:01   #103
Baxlin
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I had to select the last option, I'm driving a courtesy car currently while my D3 engined car is being investigated for one or more duff injectors.........
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Old Sep 13th, 2017, 16:04   #104
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Quote:
Originally Posted by Baxlin View Post
I had to select the last option, I'm driving a courtesy car currently while my D3 engined car is being investigated for one or more duff injectors.........
Sorry to hear that. At 30k mileage though? That's got to be unlucky - or at least, I hope it's just unlucky as I'm nearly there at 29k now.

The previous D5 was starting to get odd vibrations at particular revs at 77k. I had the vacuum engine mounts tested but they were OK and the garage suspected injectors - that was one of the factors that made it trade-in time.
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Old Sep 18th, 2017, 09:58   #105
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I tend to drive gently and I prefer flexible engines but I am aware that I tend to change up early and use the lower end of the rev range - from near idle if driving very gently. My concern has always been that I do not stress the gearbox too much in doing this. By and large I would say that my cars have lasted well under this regime and have been more economical than might have been expected. This is one of the reasons I like my T5 C70 so much - not the economy, the flexibility !
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Old Feb 16th, 2019, 00:01   #106
Baxlin
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Quote:
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I had to select the last option, I'm driving a courtesy car currently while my D3 engined car is being investigated for one or more duff injectors.........
That was last year......

Got the car back last week after DPF manually cleaned, new ECU, and turbo problems.

Combination of short journeys and light right foot. So decided to drive with a little more gusto. Received a 'notice of intended prosecution' yesterday for speeding.

C'est la vie😂
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Old Feb 21st, 2019, 09:36   #107
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My xc90 is a great cruiser however lockdown sees it wrap round to 4500 rpm.

I use this a lot and wonder if it causes damage.

That said near 85k and not had an issue so far....
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Old Feb 21st, 2019, 20:43   #108
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My "enthusiastic" driving style means my exhaust doesn't fill with up with water, so I don't get rusty silencers. My brake discs don't get pitted with rust either. My oil doesn't get frothy with condensation. Cats don't block up. Brakes don't seize up.

On the downside, I get through suspension components. Tyres still seem to rot before they become illegal, I'm sure they never used to be like that.

I enjoy acceleration and good handling far more far more than absolute speed, so speeding tickets have never been an issue (since I passed in 1988).
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Old Feb 25th, 2019, 04:18   #109
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Quote:
Originally Posted by GreenBrick View Post

I enjoy acceleration and good handling far more far more than absolute speed, so speeding tickets have never been an issue (since I passed in 1988).
Congratulations.......(or - you lucky beggar!)

This is my third since getting my licence in 1963.

My late Dad was warned (in the 1950s) for parking without lights, his only motoring violation in his 68 years of driving.
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Old Mar 12th, 2019, 14:26   #110
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number 3 for about a year and no issue yet
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