Beat : Mileage Test by GM Today I made a visit to GM SVC here for a long pending complaint ie; low FE, my best figure was only 10-12Kpl with 50% AC, sedate driving on highways. The SVC person suggested for a real time mileage monitoring ride, where they will install an equipment for testing the FE and I will've to drive to get the real readings to my driving style. According to GM, its very expensive and have latest technology for FE monitoring. But once I saw this so called equipment, the image in my mind changed. Its like a crude machine with a separate fuel pump with a small reservoir for fuel. And the funniest thing is, it doesn;t have any readings of the fuel consumption except the glass tube readings where the level of the fuel can be monitored(I've circled the side where the glass tube sits).This is the one they've connected to the car. Sorry for the crappy pic, my mobile cam is'nt good to take an impressive pic and I took the pic while the car was on move.
They've disconnected the fuel pump and connected this sophisticated one in place AFAIK. I guess it can contain 0.75ltr of petrol and I was told that he will run the car with 500ml of petrol and do the math X 2 to get the FE. We started off by resetting the trip meter, but to my surprise, he only drove the car and that too in a very very sedate style,strictly not to rev beyond 1K, and sticking to 40Kph and the route he'd chosen was an empty strech. For him, this is the optimum speed to check the FE and beyond this speed the FE will affect badly. When I asked him whether anyone will drive to this speed in a car for better FE, his answer was a blank smile. I was not in a mood to argue with him as I was late by almost 3hrs to work. I got the appointment by 9.30 and it took almost 2hrs to fit the equipment, we started off by 11.30 and that too after complaining about this delay to the Work Shop Engg in charge. We drove about 8.6Kms with 500ml of petrol so the ideal FE as per this hi funda machine is 8.6X2=17.2 Kpl. I was in the rear seat as the co passenger seat was occupied by the equipment so was not able to judge the fuel level and the driver too was judging from the seating level which is not a accurate one too. I asked him for one more drive on 60kph range but he was reluctant to do so and so do I just because I was annoyed by these suspicious acts of these guys.
According to Mr. Arun Ram, Workshop Engineer In charge, its the best mileage for Beat as ARAI figures are almost tallying with the current one. For them this car don't've any sign of symptoms or error codes when they analyse the ECU data and there's no point in re examining after this mileage test
Do you guys believe this as the real figures? I don't think so, I tried to convince him that this is not a realistic figure and am getting better FE on other cars, so my driving style is out of question. And about the mileage on other Beats are getting above 17kpl with the speedo around 60-70kph in mixed conditions, but he was not in the receiving end and I was also in a hurry to return to work as some of my clients are waiting for me. What he suggested is will do with a full tank-auto cut off spin for 20-30kms and filling method. I accepted that even though I've done it 2-3 times though to make them convince that its a low FE and we will do this in a couple of days to verify.
Salbin, Topolino, you guys are getting better mileage from this car, and what speed range do you guys feel the optimum, I used to drive in between 60-80 with an early shift to top gear without lugging the engine. I am getting decent mileage from other cars I've driven, so I guess there's something pending to be fine tuned.
Guys please pour in your suggestions for what all things I've to cross check before negotiating with the SVC as they are not in a receiving
end.
Last edited by sajjt : 26th September 2011 at 15:01.
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