The non-turbo Impreza is easier to maintain and uses less fuel

 Hello Mr Baraza, I’m interested in buying a Subaru Impreza but there are some things I don’t understand, so I need some clarification: 1. What’s the difference between an Impreza plain, Impreza WRX and an Impreza WRX STi? 2. What are the pros and cons of a non-turbo Impreza and one with a turbo with regard to fuel consumption efficiency, speed and general maintenance?Please highlight any other aspect(s) in relation to the models, their effectiveness, efficiency and engine details.Eric Karani


1. The difference could be as much as 150bhp. The regular Impreza is good for about 150bhp, the Impreza WRX makes roughly 230bhp while various forms of the WRX STi (JDM, factory-spec) develop anything between 276bhp and 320bhp. The Impreza “plain” is naturally aspirated, while the WRXes have turbos and intercoolers. They also have body kits, alloy rims and various addenda, which get less and less subtle the higher you go up the power scale.

2. The naturally aspirated “non-turbo” Impreza is far better where maintenance and fuel consumption are concerned. The turbo cars, not so much. However, if it is speed you want, you can never go wrong with the STi. De-limited, it will clock 260 km/h.

Effectiveness: The STi is very effective at what it does, which is going fast and cornering quickly, hence it’s rally heritage.

Engine details: the 2.0 litre cars all have EJ20 modular engines. With a turbo attached, the engine code is EJ20T.

Dear Baraza, Thanks for the great work you are doing. As a young hustler in Kisumu, I am thinking of getting a Mazda Familia (2000-2003) as my first car. I would appreciate your view on this car in terms of maintenance, fuel consumption, spare parts; in short, I’m interested in the economics of owning one. Regards. Andy

The economics of owning one are good. The car was cheap when new, so it will be cheap used. It uses a variety of puny powerplants, so no worries on the fuel economy front. Just make sure the unit you acquire is in a sound mechanical state. The vehicle is low maintenance (it is Japanese, you know, and small) and spare parts should not be a problem to obtain and/or buy.

Hi Baraza,

I am one of those people the government, and in particular the traffic police, are looking for because of using a Probox as matatu.

I use a 1400cc Probox to transport passengers from one town to another in a rural area  and it has been a very profitable business for a long time because on a normal day, I pocket between Sh2,500 and Sh3,500. That is more than a 14- seater makes, given that a Probox doesn’t have very my expenses because it requires only private insurance.

My question is, what makes the Probox a donkey that never gets tired because I overload it all the time and I have never replaced any part of the engine and it doesn’t show any signs of breaking down soon. I carry 10 to 14 passengers per trip and sometimes even 18, not counting kids, plus luggage like potatoes.

Now, what amazed me was the speed, because the traffic police chased me using their 110 Defender for an hour but didn’t catch me; I had 18 passengers and it was on a rough road. What’s more, it is a hilly village, so I became the village star.

How strong and durable is the 1400cc Probox engine, considering that I have had it for three years, I bought it second hand, and it doesn’t have any mechanical problem.


Interesting confession, this. Also, one that is difficult to believe. If you earn Sh3,500 per day, which is more than that made by a 14-seater, exactly how much does a 14-seater make daily? I expect it to be more. But I don’t own a 14-seater matatu, so I wouldn’t know.

Cars don’t get “tired”. They are not living organisms, least of all donkeys, which is what you describe your Probox as. Provided they have fuel in them, motor vehicles will run endlessly until certain parts break/explode/shatter/disintegrate/fall off. Cars only suffer wear and tear.

So you carry between 14 and 18 passengers in your illegal PSV, plus luggage? How do they all fit in? Please, send in a picture of the 1.4 litre donkey in action. I have seen videos of similar vehicles used to smuggle would-be terrorists… sorry, illegal immigrants – from our unstable neighbour in the north-east into the country and the best they did was 12 (not counting driver and “conductor”). How to fit in six more people yet the ones already inside don’t even have breathing room?

The least credible part of your story is the point where you say a police Defender 110 pursued your overloaded (18-deep plus luggage) donkey over rough ground and lost. Either your Probox is not really a Probox, or the ground was not rough, or you didn’t have 18 people on board, or maybe even the pursuit didn’t happen.

Whichever of these factors applies, there is one undisputable fact glaring through this seemingly tall tale: you have cast aspersions upon the abilities of police drivers, and I don’t know what the boys in blue have to make of this. You will not outrun a Land Rover Defender 110 over “rough ground” if the helmsman of the said Land Rover is even remotely capable of driving. If this gets published, I guess it is “Goodbye Probox”, not just to yours, but also to all others operating in shadowy ways like yours.

To conclude: much as the veracity and quality of your email is in question, this I can say with confidence: The Probox is not built out of titanium or granite. It will give in eventually if you continue using it like that. There is nothing special about its construction or its engine, it is just a cheap car which is easier to drive flat out compared to something costlier.

Hello JM, Towards the end of last year, the motor vehicle enthusiasts’ fraternity and the fans of the series Fast and Furious suffered a tragic loss following an accident that occurred somewhere in the US.

It cost the life of one Paul Walker (RIP) and a colleague of his. More importantly though, is that he and his colleague were driving a Porsche Carrera GT, V10 engine capable of churning out around 600hp even though it is a 2005 model.

I have read some reviews online and some imply that the vehicle is quite aggressive and would require expert skill and experience. Do you have any idea what it feels like sitting behind the wheel of such a beautiful monster, plus I thought these kinds of vehicles (really powerful vehicles since there were those who believe that the particular Porsche in this case was modified to produce more power) have magnificent braking systems?




Paul Walker’s demise was a shock to many, yours truly included, and very untimely: it came while filming of the seventh Fast and Furious movie was still under way. It is particularly galling, given that Paul Walker was a real-life motoring and racing enthusiast who owned a selection of potent and interesting motor vehicles, up to and including, but not limited to, a BNR34 Nissan Skyline GTR (the exact same car used in the 2 Fast 2 Furious film opening sequence) and a V8-powered Volvo station wagon.

The car that killed him is aggressive and difficult to drive. It takes a lot of skill to push it, and not many people can get anywhere near its limits. Theories abound as to what actually happened, and they vary from speeding (widely dismissed by on-the-ground witnesses), to street racing (also widely dismissed, though there was a yellow Honda S2000 on the scene immediately after the crash, the occupants of the Honda say they were going about their own business and were there to rescue any survivors), to avoidance of yet another accident, to the most absurd-sounding: that the man was murdered. I am not a CSI agent, so let us leave it at that.

I have sat behind the wheel of similar fare, literally sitting, but when it comes to driving, the farthest up the ladder I have reached is a 2012 R35 Nissan GTR. Its performance parameters compare thus to the Carrera GT’s: Power is 542bhp compared to the Porsche’s 620. Acceleration: the Nissan takes an otherworldly 2.8 seconds to clock 100 km/h from rest, while the Porsche takes about 3.5. Top speed of the Nissan is about 318 km/h, the Porsche pushes matters to the scary side of 330 km/h.

Whether or not the red Carrera GT was modified is moot: even in stock, factory-spec condition, that car tries the abilities of anyone who dares drive it. The Nissan’s abilities look quite similar (and superior in some cases) on paper, but the Nissan is harder to crash because it uses many computers to achieve stability and it has a very complicated 4WD system.

The Porsche is RWD and the last of the purpose-built no-frills supercars. The chips in the Nissan will intervene in the event of loss of directional stability, but even before that, they ensure that loss of grip does not occur in the first place.

Meanwhile, the Porsche will show you up for the driver you are, and the outcome is you will see God. Even BBC Top Gear’s anonymous race driver (The Stig), arguably one of the world’s most capable drivers, spun the Carrera GT several times before completing a full lap in it. That is how “dangerous” the Carrera GT can get.

The Porsche can get dangerous, but it is not dangerous. Advanced aerodynamics (including the deployment of the rear wing once a certain speed-110 km/h- is reached), a very low centre of gravity, even weight distribution, top-tier braking ability (100 km/h – 0 in 31m only) and fat tyres make for a stable and very fast car in the right hands.

The question is: was Paul Walker’s friend and business partner that much less of a driver? No. He and Walker both had racing experience, and their joint business interest dealt in vehicles of that calibre. Clearly, they knew how to drive these vehicles, and doing abnormally high speeds in a restricted zone in a flashy car would just be asking for unwanted attention from the authorities. Were they speeding? I don’t know. Does the Carrera GT require advanced driving skills to push hard? Yes. Is the Carrera GT dangerous? No.

RIP Paul Walker.

Hi Baraza,

I am looking for a Japanese import car to buy. I have a question, though. How do I know if the vehicle’s odometer has been tampered with? I learnt from a car importer that odometeters are tampered with in Mombasa, then the vehicles are advertised as having low milage. Is there a definitive way to tell what the actual mileage is? Thanks


Well, there are ways of checking this:

1. Examine the odometer. Cars do an average of 20,000km per year. Use that against the age of the car. If the figure comes up short, get suspicious. Look closely at the numbers in cluster. For some analogue systems, a white space instead of a black space between the digits means the system has been tampered with. For some digital systems, interference with the mileage causes an asterisk to appear next to the readout.

2. Ask for FSH (full service history). Use the number of services against the service intervals to calculate a ballpark figure of the vehicle’s actual mileage.

3. Look for missing screws on or near the dashboard.

4. Check the pedals and floor mats. If they are shiny and/or worn out, that is a car that has seen many miles.

5. Inspect the vehicle for wear and tear. It should be consistent with the alleged mileage.

6. Check the tyre tread depth. Some people may roll back the od,o but their subterfuge may not be elaborate enough to get rid of such telltale evidence. Or the tyres might be too new for the indicated mileage, while the indicated mileage, might not being high enough to warrant a change of tyres.

Dear Baraza,I have a Nissan Navara  DCI D40 model Ex UK year 2006 and would like your professional opinion on what engine oil I should use. Currently, it is being serviced at D T DOBIE  and they are using normal oil 15w 40 but a friend of mine recently advised me to switch to full synthetic oil 5w 40 if I want a longer engine life for this vehicle. What’s your take on this?Kind Regards, Appi

What does the vehicle handbook/manual say?

Tell your friend to sod off. Unless the oil s/he is talking about is cheaper than yours, then s/he doesn’t have a valid point to make. The 15W 40 oil means the viscosity index is 40 for normal conditions, and 15 for winter conditions. The 5W 40 means a VI of 40 for normal conditions and 5 for winter.

We don’t have any winter here, do we? No. So we have no interest in the winter rating for the oil. It follows that the two of you are discussing the same bloody oil: one with a viscosity index of 40. If, for the sake of argument, we had winter, then “your” oil would be better than “theirs” due to the higher winter VI. So, again, tell your friend to sod off.

Mr Baraza JM,

I wish to thank you for the good work you are doing, educating us on various issues touching on different types of motor vehicles and motoring in general every Wednesday. I would like you to compare and guide me on which the better vehicle is between a Mitsubishi Outlander and a Rav 4, each of 2400cc or thereabouts in terms of:

Safety of passengers

Fuel efficiency

Availability of spares and cost thereof

Comfort on and off road.

Kind regards,


Greetings Stephen,

I wish you had been more specific about the vintage of the vehicles in question. Factors like safety ratings and fuel economy tend to vary quite a lot from generation to generation. For your query, I will assume a 2007 car.

1. Passenger Safety: Interesting result here. The RAV4 scores 4 stars out of 5 for the UCSR (Used Car Safety Rating) while the Outlander scores the full 5 out of 5.

2. Fuel Economy: Again another interesting result. The RAV4 does 9.3 km/l while the Outlander out-teetotals it at 10.5km/l.

3. Spares: these vary widely in availability and cost, depending on where you look and who you ask. But trust Toyota parts to be widespread, though they may not necessarily be “cheap”
Comfort: broadly similar all round.



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