No need. In any case, look at John Cadogan's video on Nitrogen Vs Air before switching to Nitrogen. Excepting in urban areas, availability of Nitrogen is an issue. Made a lot of sense to me & I am struck with Air. Not at all that tough, but a bit tedious. Attached are the images from the manual.
Thank you for sharing calibration information.
Regarding Nitrogen filling
I am using Nitrogen in my tyres from last 4 years and I have found no issues in this. Every approach has few pros and cons.
I agree with you that availability of Nitrogen is not easy. Also the rate of topping up at various shops varies drastically. Where I fill regularly, that workshop charge me Rs 20 for top up on 5 tyres. However when I am on move, I've even paid Rs 100 for top up (In Khandwa, MP) and Rs 50 is common.
The good thing about Nitrogen is that during long runs on triple digit speeds (sometimes 500 KMs in summer in single stretch), Nitrogen doesn't inflate with heat. With normal air, I need to keep tab on pressure every day during travel.
If there is no flat tyre, I don't even check Nitrogen pressure until next alignment cycle (i.e 5000 KMs) and so far no issues.
Hello Dicor,
I believe you have driven both Dicor 2.2 and Mhawk 2.2 Quite long term. Both are 140 HP.
What difference have you noticed in High speed behaviors of these engines, and then the car as a whole? I am talking 140 Plus.
Leaving specification aside, If I talk about ground reality, Safari is lethargic vehicle as compared to XUV. The initial start is very slow and then suddenly there is whistle (whooooshhhh!!!) and surge in power. XUV has very negligible lag. It builds up speed very quickly but passengers doesn't feel it because acceleration is linear.
Personally, I am quite addicted to turbo whistle and surge in power and I miss that in XUV. XUV also whistles but it's unnoticeable until you drive on noiseless atmosphere with windows roll down.
Engine Idle
Both engines sound same. In fact I always wondered why do they sound so identical until I noticed that both are manufactured with the help of same company. i.e. AVL.
During idle speed and lugging, DiCOR produce tik tik sound too and that comes from injectors. TATA explicitly mentioned that injector and timing chain problem is solved in Varicor engine. m_Hawk engine is very refined.
High Speed behavior
Above 2000 RPM both vehicles, have massive power available in any gear. While overtaking you just need to tap the accelerator and it's breeze. Safari isn't very tolerant to incorrect gears. It starts lugging. XUV too lugs but it is more tolerant than Safari. May be because you get power at lower RPM.
Above 3500 RPM
Both engines become noisier and crude.
Handling of vehicle
I've only taken Safari to 150 once and it was scary. Things are good if you are on straight line, but the moment you try to change the lane or little maneuvering, it is very very scary in Safari due to it's high center of gravity and soft suspension setup.
With 7 people on board, once XUV needle had touched 195 on Nehru ORR (Hyderabad) and it was very planted on straight line.
Note: I do not encourage dangerous speeds. I was young and had no dependents at that time, when I did those speeds.