I insist, the Prius is not what it is made out to be

Hi Baraza,

I have read a number of your articles but not come across any on the Toyota Prius. Would you kindly review it; my apologies if you have already done so because I must have missed it. Regards. Freda

Hi Freda,

I have not done a full review per se, but I have mentioned the Prius several times before, and nothing I wrote was encouraging. The Prius is what we call a smugness generator, a car people buy so that they can look down on others. Someone tried it on me and it did not end well.

The problem is that the Prius is not what it is made out to be. Toyota intended it to be the last word in fuel efficiency but it isn’t.

Some European models offer better economy without resorting to battery assistance, especially the sub 1500cc diesel-powered hatchbacks. Toyota’s own superminis (the likes of the Yaris and the Aygo) also offer better returns on the mpg scale at a lower price.

The world’s leading motor journalist also says research shows that total assembly of this vehicle in the long run does more damage to the environment than a Land Rover Discovery would in its entire fuel-guzzling lifespan, courtesy of the mining, shipping, factory processing and manufacture of its batteries, which, incidentally, are supposed to be its party piece.

He further demonstrated that, driven at full speed, the Prius burns more fuel than an E92 BMW M3 moving at the same speed. The BMW is a sports car, a very fast one, with a 4000cc V8 engine and 414hp.

Meanwhile, the Prius has a 1500cc unit supplemented by an electric motor, making a combined horsepower figure I am unaware of and not interested in knowing.

One last shot: when running on batteries, the lack of engine noise makes it a whisper-mobile, so no one will hear you coming and you should, therefore, expect to slay a substantial number of unwitting, non-motorised street-users as a result.

How many children will you kill in this manner before you convince yourself that the Prius is, in fact, a car made for Hollywood stars to assuage their guilty consciences that they are doing the world some good?

Hi Baraza,

I have had a Starlet EP82 year 92 model for six years now. Mid last year, the temp gauge went close to the half mark and it would require water after covering about 500 kms.; initially, it would go for months. The car has no thermostat and the mechanic suggested a cylinder head gasket overhaul, which I declined, so we ended up changing the radiator cap but it still needs refilling after covering the same kms though the good thing is that the temp gauge never goes beyond the quarter mark.

I recently hinted to my mechanic that for the last two years the engine has lost power; no change even after replacing the clutch and pressure plate.

He suggested we replace the piston rings and crankshaft cone bearings to improve compression. Is he right? What could be the cause? I service it every 7,000 kms with Shell Helix HX5 15W-40, it has no oil leaks so no top-ups, and the car is very economical: 17.5-19kms/litre on the highway.
Regards.

Kamwago

Your mechanic might be on to something. The head gasket might need replacement. This would explain the two symptoms you mention: 1. Power loss: this could be due to compression leakage, hence the (latter) suggestion that you get new rings. But the case of worn out rings is almost always accompanied by oil consumption, which you say is absent. Compression leakage could also occur via the head gasket, so this is a more likely situation.

2. Loss of coolant: coolant could be leaking into the cylinders. Either that, or the cooling system has a leak somewhere.

I think you might need to check your cylinder head gasket after all.

Hi,You promised to tackle small engines that have turbo, especially motorcycles i.e (125cc). I own one but I don’t see much difference between it and other 125s; is it okay?

I do not know of any turbo motorcycles. Which model is this you own? I have a colleague who specialises in two-wheeled transport who might be able to shed some light on your machine, if it is what you say it is (I really doubt if your bike is turbocharged).

I have covered the topic of turbo charging so many times that I rarely delve into it any more.

Hi Baraza,

I own a manual Nissan B15. Recently, it began switching off on its own on the road and also when idling. I took it to a mechanic and he replaced the old plugs and it went off permanently. It also used to discharge its battery when left overninght but retain charge when disconnected.Kindly advise.Joseph Mutua

That sounds like a short circuit somewhere. It explains the stalling (current bypasses the ignition system and is grounded immediately) and also the battery discharge. Have someone look at the wiring and electrical system, the fault should not be hard to find.

Hi Baraza, I’m hoping to change my car this year and am interested in the Nissan Pathfinder or Land Rover Discovery 4, whichever is more affordable. However I would like you to give me insights into the pros and cons of the two vehicles. Secondly, which is your preferred 7-seater SUV ? Anthony Crispus.

Hello,

1. Discovery pros: good-looking, comfortable, smooth, luxurious, handles well, is nice to drive and has some clever tech in it (terrain response, air suspension etc). Also, the diesel engines are economical and all models are fast (this applies to the Disco 4 only. Previous Discos were dodgy in some areas). It is surprisingly capable in the clag.

Cons: Very expensive. It is prone to faults, which are also expensive to fix. Petrol-powered vehicles will get thirsty. The air suspension is unreliable. Also, a man in a Prius will look at you badly for driving a massive, wasteful fuel-guzzler.

2. Pathfinder pros: cheaper than Discovery. It is based on the Navara, so they share plenty of parts. It is also rugged, somewhat.

Cons: being a Navara in a jacket means it suffers some of the Navara’s foibles, such as a rapidly weakening structure under hard use, poor off-road clearance when the high-on-looks side-skirt option is selected and is noisy at high revs. They also don’t sell the 4.0 V6 engine option locally.

My preferred 7-seater SUV is the Landcruiser Prado. I like the Discovery, a lot, but the Prado is Iron Man (unashamedly faultless and immodest with it) to the Discovery’s Batman (good looks and god-like abilities but inherently flawed and thus susceptible to bouts of unpredictability and unreliability).

Hi,

I have a Toyota Allion. The problem is that it pulls to the left. The wheels are the same size and tyres are properly inflated. Wheel alignments, including computerized, don’t correct the problem. My mechanic does not know what the problem could be. Please advise.

Simon

Are you using directional tyres by any chance? Some tyres are meant to be used on a specific side of the vehicle and should not be switched. Also, check your brakes. Unlikely though it is, one of them could be binding.

Hi Baraza,

While I missed Munyonyi’s question on airbags, Sally was right about airbags in suspension. These are retro fitted bags installed (usually) inside the standard spring that function very similar to a tube within a tyre and come with a compressor.When pumped up they raise the ride height and reduce the spring give and body roll. They also increase load capacity. Pretty simple in function and relatively cheap. Favoured by offroaders. Your explanation on was right, just for different systems.

And now tomy question: Why does Toyota torture us with such reliable but sin ugly vehicles? I’m tired of defending these Picasso-looking machines with, “It will reach and come back.” Is there any good looking Toyota (except the 40 and 80 series Landcruisers)? Mwenda

I like the way the Mark X looks. And all the big Landcruisers (80, 100 and 200 Series); Prados look funny. The problem with having 13,000 designers in your employment is that sometimes you have to give some of them incentives not to migrate to Nissan or Honda. That means passing off their designs to production stage. It is hard to say what these designers do in their spare time, but drugs could be a possibility: how else would you explain such aberrations as the Verossa? Will? Platz? Opa?

I received several emails about the air-bag issue, and I apologize to Munyonyi and Sally. They were right. I wasn’t.

Hi JM,

I recently changed the tyres of my Mazda Demio from the manufacturer’s recommended 185/55/R15, which were too small for Kenya’s rough roads, to 195/65/R15 which are bigger. While I appreciate the significant increase in ground clearance, I also noticed a significant dip in engine power. It’s a manual transmission, and some of the steep slopes that I used to comfortably clear in third gear now force me to downshift to second gear two.
How can I get the original power back without having to replace the tyres again? Kelvin.

Fitting bigger tyres has the effect of gearing up your drivetrain, hence the apparent dip in power. If you revert to the original set, you will notice your car is fine.

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