Internal engine cleaning

Posted on May 12th, 2008 in Driving Emotion, Peugeot, diesel by Julian Edgar

In recent articles in AutoSpeed we’ve covered the major benefits of water injection. Without recapitulating those articles in full, water injection can improve power, lower fuel consumption and reduce exhaust emissions.

As recounted in one of those articles, the high pressure water injection system that I developed was tested on both my Honda Insight and Peugeot 405 diesel.

However, I haven’t left the water injection system installed on either of these cars – the Honda’s would have needed too large a water tank (the water injection was being used continuously in cruise) and in the Peugeot, the water injection system did not reduce post-turbo intake air temps as effectively as squirting the spray straight onto the intercooler core.

I Hate Car Maintenance

Posted on May 5th, 2008 in Driving Emotion, Peugeot, diesel by Julian Edgar

I love modifying cars but I hate doing car maintenance. Even something as simple as an oil change I despise: I sure wouldn’t last long working as a mechanic.

But every now and again I need to do what I hate: maintenance.

In the most recent case it was a noise that developed in the engine bay of my Peugeot 405 diesel. It started, I thought, after I repaired a leak in the plastic power steering fluid reservoir. The fluid level had been dropping and then I noticed a crack near the outlet pipe. I took a punt and used a soldering iron and filler rod (cable ties!) to plastic weld the crack closed – the repair worked perfectly.

With new fluid in the reservoir, everything seemed fine.

But then a whine started up in the engine bay. Initially it was just audible, but it got louder and louder. It varied with engine revs, being just able to be heard at idle but being very loud indeed at 3-4000 rpm.

Shooting for goals that have gone…

Posted on April 17th, 2008 in Driving Emotion, Economy, Hybrid Power, Opinion, diesel by Julian Edgar

Regular readers will know of my admiration for the Toyota Prius.

That’s not just because I own a first series NHW10 model (currently off the road with a worn-out high voltage battery) but primarily because of the commercial success the Prius has had.

Simply put, in terms of actual impact on the market, the Prius stands head and shoulders above any ‘alternative’ car that has been sold in perhaps the last 75 years.

prius1.bmpIt therefore behoves anyone enthusing an alternative automotive technology – whether that’s biodiesel, LPG, pure electric cars or anything else – to know the Prius inside-out. To know its equipment level, its warranty, its real-world fuel economy, its emissions performance, its new and used prices, and its technology.

Like it or not, the Prius sets the current benchmark.

Nope, not necessarily in any one specific area - emissions, fuel economy, driveline technology, control electronics or even high voltage battery technology - but in a total package that has been successfully sold to the public for a decade.

And, because of that timescale, it is a car that is now available very cheaply second-hand.

That might all seem obvious - but it is certainly not to some.

I recently had long phone discussions with a man very enthusiastic about DIY biodiesel. He runs seminars on the topic, played an instrumental part in developing a home biodiesel plant, and is highly educated. But his knowledge of the Prius (and other hybrids) is poor indeed.

With regard to hybrids, his website contains errors of fact and makes some statements that could only be described as wild scaremongering.