Toyota Landcruiser- Fuel Efficiency(FE) Update after the FIP Overhaul & Uneven Tyre Wear
Post the Overhaul of the Fuel Injection Pump FIP and changing the Injection Nozzles I was eager to gauge the Fuel Efficiency (FE) of the vehicle. Since the Overhaul I have driven the vehicle for an approx distance of 2100 Kms which I think is a good measure for gauging the FE. I have measured the FE on a tank full to tank full basis. Further during this period I did a out station trip of 1062 KMs from Delhi- Jaipur-(off-roading 150kms) Sawai Madhopur- Delhi and the rest was 1 trip Del- Bhiwadi- Neemrana- Delhi (approx 300 Kms) 3 trips Delhi- Bhiwadi- Delhi (approx 190 KMS each) and rest local city driving.
On the Highway run (Jaipur & Sawai Madhopur) I was averaging speeds of 110-130 KMPH and did off-roading of 125-150 kms. This run gave me a FE of 7.96 KM/ Liter.
During the second round of driving I was averaging speeds of 80-90 KMPH and the TLC returned a FE of 9.95 KM/Liter.
Prior to the FIP overhaul the TLC was returning a FE of 7.00-7.50 KM/Liter with the best and worst being 8.35 and 6.90 KM/Liter. Therefore I think that the work has been satisfactorily done, but would still keep an eye out and would base my judgment once I’ve completed 5000 KMS post the overhaul.
Uneven Tyre wear
Another issue that has now cropped up is uneven tyre wear on the rear tyres. As can be seen from the enclosed pictures both the rear tyres are showing signs of uneven wear, which is to say that the rear left has uneven wear on the Left and same for the rear right which is wearing off from the right hand side. I am clueless as to what this issue might be. Have asked around in my friend circle and also on some Toyota Landcruiser Forums. The latter attribute this to low tyre pressure. I generally keep the tyre pressure at 30PSI on all 4 and they say that it should be atleast 38 PSI. My friends and also the workshop manager at Lakozy Toyota attribute this to the suspension and particularly to the suspension bushes. Have got the alignment and balancing of the vehicle checked regularly. Still working out the cause of this problem and hope to find a solution soon. These tyres were bought by me IInd hand and the previous owner had used them for an approx of 5K kms and since then I’ve used them for 20K Kms. The manufacturing date on the tyres are 3rd quarter of 2009.
Hoping to find a solution soon.
Rear Right Tyre
Rear Right Tyre