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That would probably help, possibly at the expense of some fuel economy. I've been driving my D4D a lot harder for the past few years, initially as an experiment and this seems to have helped stave off the dreaded EGR sooting up that city-driven diesels are prone to. (I keep it below 2000rpm until the engine temp light goes out, then it's full bore starts off the line and fairly brisk acceleration all the way ) Funnily this change in driving style has had almost no effect on my MPG (If anything it's better?!); My theory is that a) Diesels are much more efficient under harder loads than softer ones (And produce less NOx!), and b) Because I get to the speed limit much faster, I'll get in 4th or 5th gear much earlier where I use little to no accelerator to keep the car rolling along at the speed limit. The HSDs are even better at this: You can do a similar thing by accelerating as hard as you can without going into the power band (i.e. go right to the edge of the Eco band), and then you lift off the accelerator just enough that it doesn't put any more power into the engine, but also doesn't regen - You will effectively frictionless and can roll for aaaages at the same speed if you can find the sweet spot on the pedal :) (It's almost like putting a normal car into neutral, except without the hideous danger ) The more aggressive acceleration* delivers more heat than the cold engine can sink away so the cylinders warm up faster, and the coasting uses no fuel, so theoretically it should be quite efficient. From what few people have given feed back after trying this, it seems to generally work! (*Note, the acceleration is 'Brisk' and not 'Flooring it so that it screams like a scalded cat' )

As suspected.....at least you know.!! If you are happy @ £185 then that's all that matters...it's not particularly cheap. Depends what the rad cost was + the labour content.?...I would have got it done cheaper tbh. BUT...it does give you peace of mind and it's a job you won't have to do again for a few years,!! :D Neil

Not bad Wayne. I put on 465 miles and filled up with 40 quids worth at 1.09 per gallon, the fuel meter showed 75 miles left before I did this. A rough calculation brings in around 57 mpg compared to 64 on the readout. Very happy with the 57 if that's what it really is?

LOL Imagine a fur lined den filled with nubile nymphs and a Greggs counter.......... :D: :D: :D: I am THERE!

LOL Imagine a fur lined den filled with nubile nymphs and a Greggs counter.......... :D: :D: :D:

Not on a HSD however, they seem to run a lot cooler, not helped with soak away from the block when the enging isn't running etc. On a short journey they rarely get up to full operating temp.

Just a newbie - so had to ask silly questions! Guess that's a no then ;) Ahh no, sorry - I meant that as a response the post about the EGR in a hybrid needing to be changed due to short journeys. That has always been a diesel problem; Petrols should never have this problem!!! Petrol exhaust is incredibly hot and should have burned all that stuff off easily! The problem with diesel is the exhaust is much cooler so unless you're turbo boosting like Knight Rider it never gets hot enough to burn off any carbon, which is why they say you need to go on long motorway runs to burn out the carbon in the DPF. Also, diesel doesn't burn off as cleanly as petrol so there is carbon dust in the exhaust which gets sucked into the EGR. Petrol engines should not have these problems!!! Another example of stupid regulations having the opposite effect of what they want to happen!

If you mean the charcoal filter (aka cannister) there is one in or near the fuel tank to capture excess vapour when filling or when the tank heats up. Some people advocate not completely filling the tank as it can damage the charcoal filter, but I've routinely brimmed mine for over ¼ million miles in various Prius models with no problems. There also used to be a charcoal version of the pollen filter available (which lives near the bottom glovebox on a Prius), but my dealer tells me they stopped making these due to lack of demand.

Thanks konrad, I ordered this one. Thanks smudge Thanks to everyone who posted back.... Im never going to touch my phone again in my car, even if im stationary and the lights are red....

I've had 2 x diesel RAVs, 2 x diesel Land Cruisers, a Saab 9-5 diesel and a BMW 5 series diesel. No problems with any of them. However as a poster above has said, diesels were never designed for what they're being used for now; they were originally designed to be a robust power plant that could run on low quality fuel (such as vegetable matter) but keep going for years with minimal maintenance. They were great for agricultural applications like tractors, balers, combine harvesters, remote generators, etc. To function as a performance power plant and meet all the enviro obligations, they need so much sophisticated add-ons that the engines are now becoming increasingly problematic and therefore costly to run. On the other hand, we are now seeing the sort of high performance, low emission petrol engines that we could have had 25 years ago if the powers that be (UK & EU) had gone for lean burn technology instead of following the US's blind faith in downstream catalysers. The VW fiasco has simply hastened the demise of diesel as a credible fuel for road cars; it won't disappear overnight but sales of diesel cars will start to decline and petrol models will be more prevalent in manufacturers' line-ups.

On gen3 prius, the MrT sticker recommends 36psi, but different brands seem to need different psi and it also depends on the air temperature when you pump the tyres up. Higher psi gives better mpg but a bumpier ride.At the end of the day, you need to keep an eye on the tyre wear and adjust the psi to suit.