Seeing that you are in the game of accurately testing fuel consumption, among other things, I cannot believe that you actually published Dayalan Pillay’s “Fuel-efficient Suzuki Swift” letter about fuel consumption figures in your July issue.
He fills the tank to three-quarters and never lets it get below a quarter, and on the strength of that he gets 6,6 L/100 km? We all know how inaccurate fuel gauges are and how the top half of a tank is bigger than the bottom half. Is his ignition always on while filling? Maybe his engine is running, too? He could easily be five litres either side of three-quarters, or if he is outside the car error of parallax could skew his view of the needle. I doubt very much the “float would go faulty” if he used all the fuel in the tank.
As for driving style, it’s every person’s own thing; if switching off the air-con at every hill is his, so be it. I assume, then, he had a hot and sweaty journey from Durban to Harrismith without aircon as it is uphill most of the way. My car also slows down when I take my foot off the accelerator.
His oil was warm within 10 minutes of him starting the journey. If it took two hours to warm up, he best take it to a dealer ASAP as he has a serious lubrication problem. The oil temperature has nothing to do with the “extra” power, or the sudden improvement in fuel consumption. It is more likely the extra oxygen and increase in atmospheric pressure that accounted for the more lively performance. As for fuel consumption, these are inaccurate figures considering his modus operandi of calculating these. Obviously he is a cautious driver, so I commend him for that.
PETER GORDON GRANT Chintsa East,
[We enjoy publishing letters from CAR readers who show passion and enthusiasm for their cars, Peter. Like Dayalan’s, yours is a case in point – editor.]