Tyre Tips and Maintenance


Joined
Dec 15, 2011
Messages
2,536
Likes
1,304
Location
M.P.
Sorry for this simple question, but what does 145/70/r13 mean? Can i go for fatter tyres without it touching/scraping the insides of my zen?
145 = Width of tire in millimetres.

70 = 'Aspect ratio' i.e., the height (sidewall only) of the tire expressed as a percentage of its width. In the case of a 145/70R13 tire, the height of the tire (sidewall only) would be 70% of 145 = 101.5 mm.

R = Radial

13 = To be mounted on a 13 inch (diameter) wheel rim.

In most cases, there'd be a 'P' added before the tire size e.g. P 145/70R13. This 'P' stands for Passenger Car.

For question number 2, it depends on how 'fat' you want to go.
 
Last edited:
Joined
Feb 28, 2013
Messages
155
Likes
20
Location
Hosur
@ Sam - Thanks, I wanted to try 155 or 165, but I am guess I may have to go for a lower height/ aspect so it doesn't scrape the sides. Varun told me he had a scraping issue. Your views?
 
Joined
Dec 15, 2011
Messages
2,536
Likes
1,304
Location
M.P.
Zens are not known to take wider tires nicely. However, you can safely go for 155/70R13. Going low is not advisable because the Zen has fragile rims; you may go for 155/65R13 but not lower than that. I think Apollo, Michelin, JK, Goodyear offer 155/70R13.

Interested in spending Rs.12000-15000 on tires for the Zen? I thought you wanted to chuck it and go for a Sierra or the likes [;)].
 
Joined
Feb 28, 2013
Messages
155
Likes
20
Location
Hosur
@ Sam - I take care of all my stuff. Even though I may sell the Zen, still I maintain her, polish once a month.. wax on, wax off. My right back tyre started wearing unevenly. My mechanic found that its brake kit was kaput. MASS never detected this problem.:@ Replaced it, new ignition wires & new sparks and the car runs so smooth that I don't feel like selling it.
M800 & zen owners' wishlist usually includes PS, PW & alloys with fat tyres.
 

Vishwas

Moderator
Joined
May 11, 2011
Messages
4,090
Likes
948
Location
Bangalore
My car finished 3 months last week, the tyres are running fine with nitrogen filled, so when do i fill nitrogen again? or what is the interval to fill nitrogen? I don't remember seeing that in an instruction manual.
 
Joined
Aug 17, 2013
Messages
57
Likes
53
Location
Bangalore
My car finished 3 months last week, the tyres are running fine with nitrogen filled, so when do i fill nitrogen again? or what is the interval to fill nitrogen? I don't remember seeing that in an instruction manual.
Actually, theres no difference in frequency whether you fill air or nitrogen. Top up/check every 15 days once and before a long drive is advisable.
Take care that normally all gauges show lesser pressure (you will end up in filling high pressure). To be filled before start of your journey.
 
Last edited by a moderator:
Joined
Dec 15, 2011
Messages
2,536
Likes
1,304
Location
M.P.
My car finished 3 months last week, the tyres are running fine with nitrogen filled, so when do i fill nitrogen again? or what is the interval to fill nitrogen? I don't remember seeing that in an instruction manual.
Vishwas, nitrogen holds on longer than regular air. I have known instances where tires running on nitrogen maintain the same psi/kgm for 3 months. However, it would not hurt to check tire pressure every week, nitrogen or not in order to avoid surprises, surprises[;)].
 

Vishwas

Moderator
Joined
May 11, 2011
Messages
4,090
Likes
948
Location
Bangalore
Actually, theres no difference in frequency whether you fill air or nitrogen. Top up/check every 15 days once and before a long drive is advisable.
Take care that normally all gauges show lesser pressure (you will end up in filling high pressure). To be filled before start of your journey.
Vishwas, nitrogen holds on longer than regular air. I have known instances where tires running on nitrogen maintain the same psi/kgm for 3 months. However, it would not hurt to check tire pressure every week, nitrogen or not in order to avoid surprises, surprises[;)].
Well thanks, then i'd better fill the tires with normal air pressure, which i may have to continue with my old routine of getting it checked twice a month.
 
Joined
Dec 15, 2011
Messages
2,536
Likes
1,304
Location
M.P.
Well thanks, then i'd better fill the tires with normal air pressure, which i may have to continue with my old routine of getting it checked twice a month.
I do not see anything worthwhile in filling up nitrogen inside the tires of a humdrum everyday car. Nitrogen may be useful for racing/high performance cars that run high temperatures inside their tires by virtue of their usage.

Nitrogen should retain its pressure for 2/3 months. Do keep checking this. Whether or not you want to refill with nitrogen is of course your decision. By the way, how much did they charge you for the nitrogen fill? Most people charge around Rs. 20/30 per tire.

p.s.: Hope you are enjoying your Enjoy. Please answer this: http://www.theautomotiveindia.com/f...ficiency-figures-your-cars-29.html#post332686
 

Vishwas

Moderator
Joined
May 11, 2011
Messages
4,090
Likes
948
Location
Bangalore
I do not see anything worthwhile in filling up nitrogen inside the tires of a humdrum everyday car. Nitrogen may be useful for racing/high performance cars that run high temperatures inside their tires by virtue of their usage.

Nitrogen should retain its pressure for 2/3 months. Do keep checking this. Whether or not you want to refill with nitrogen is of course your decision. By the way, how much did they charge you for the nitrogen fill? Most people charge around Rs. 20/30 per tire.

p.s.: Hope you are enjoying your Enjoy. Please answer this: http://www.theautomotiveindia.com/f...ficiency-figures-your-cars-29.html#post332686
I haven't checked the air pressure of the car after it finished the first service where they mentioned they filled nitrogen and good to go for a month, usually these petrol bunks equipped with nitrogen charges 150 bucks for 5 tyres.
 
Last edited:
Top Bottom