[MandarMax]

Originally Posted by S_U_N

Then I checked with my compressor and it showed 50 psi.
He checked again and the reading was 60 psi, but he noticed that the needle rests at 10 psi marking and not at 0. So he concluded that this 60 psi is actually 50 psi and matches with my compressor. I was OK with that.
Then I asked him to check the reading on the other tyres and it showed 40 psi all around - which would be 30 psi as per him.
However, my gauge shows 25 psi for the same tyres.

Now, I am not sure which gauge to trust and which to avoid.

It is possible that both the gauges (your and tyrewalla's) may have some margin of error, but you need to keep in mind that when you take temperature at home the tyres are cold and when you go to the tyre shop the tyres get warmer so the reading would change, so you need to factor in this next time.

I think the recommended temperatures by car manufacturers are for cold tyres, so if you are filling the air when the tyres are warm then it is better to overfill by 3/4 psi. I prefer slightly higher pressure than under pressurized tyres.

[MandarMax]

Originally Posted by S_U_N

Since pressure should be measured when tires are cold, I am not having this option as such.

I see you are already considering this. (see my earlier message about cold tyres). Anyway, check this out - according to this website, cold means you have not driven more than a kilometer.

[AvonA7]

Originally Posted by S_U_N

I will have to try this with my spare tire one of these days.

Hi S_U_N, thanks for the honest and interesting post, your post was quite refreshing.

What you said is absolutely correct, this is the only way you can be sure of the accuracy of the tire pressure, considering the fact that a decent petrol pump is quite far from your place, at least measuring and monitoring the tire pressure in your spare tire, you’ll be able to understand the accuracy of the particular pump and accordingly fill your tires.

Reading your post it seems like the pressure gauge you are using is not accurate and moreover as already posted by many, better to avoid the road side tire shops and go to some decent pump to fill tire pressure.

It’ll be easy for the experts here to advise on the tire pressure gauge you are using if you post a pic of the same.

But I heard that the brass ones (analogue tire pressure gauge) are the best even though a bit costly, but then it’s a one time investment.

[S_U_N]

Had checked with Darshan Tyres last evening.
Spare tyre: His reading was 35 when my reading was 30.
For rear tyre: His reading was 30 and mine was 25.
Approx difference of 5psi.
I will head off to Nana Peth next weekend to get a better gauge.
Any recommendations are welcome.

[anilisanil]

Huuuuuuge traffic jam Balewadi stadium onwards. Very slow moving traffic due to an accident and some maintenance work going on blocking left lane continuously. Please plan accordingly if you are yet to start!

[Swanand Inamdar]

^^Anil, was stuck in that jam too. Apparently, one JCB had malfunctioned (after a minor accident) and another JCB was called to tow the one broken down. This happened somewhere near Holiday Inn hotel and the jam extended till Wakad flyover.

Saw the JCB's near the octroi post as I was crossing that point.

[sajo]

There was a rear ending too near Balewadi Stadium. A truck had its RHS wheel and lower right portion crumpled , as if it had clipped a smaller vehicle from the right. No sign of the other vehicle though. The truck lay damaged and occupied the left lane.

Saw one more rear ending yesterday evening at about 7 near Praj. A Mahindra PikUp had hit a M800, their argument was just ending as I passed by in the bus.
Be very careful on the highway guys. Its hopelessly infested by senseless morons these days.

[S_U_N]

Originally Posted by S_U_N

Had checked with Darshan Tyres last evening.
Spare tyre: His reading was 35 when my reading was 30.
For rear tyre: His reading was 30 and mine was 25.
Approx difference of 5psi.
I will head off to Nana Peth next weekend to get a better gauge.
Any recommendations are welcome.

Update: I stopped by at the tyre walla (second one) on Nagar road to verify the pressure on my spare tyre. Turns out his gauge did not go beyond 5 psi. The gauge has gone bad (was working OK yesterday).

My conclusion is that these gauges (with these road side tyre wallas are very unreliable - 3 out of 3 gone bad in 2 days.

I would never believe those gauges anymore in any part of the country.

I am looking out for more reliable gauges now.

[comfortablynumb]

Originally Posted by S_U_N

I am looking out for more reliable gauges now.

I've been using this for the past 2 years now. It hasn't given any problems yet [touchwood!], is quite accurate and doesn't take much time to top up the air pressure in all 4 tyres of my Scorpio. Only downside is it's more expensive than other inflators available in the market.

Link Image Makers (India) Pvt. Ltd.

If you want just a tyre pressure gauge, then that's available too: Link Image Makers (India) Pvt. Ltd.

Cheers,
Vikram

[S_U_N]

^Thanks. Looks OK.
There are some more features like the 'Hold' feature and the pressure release outlet in this model which I like.

I will do survey in the market and get something in a couple of weeks.

[amitwlele]

Originally Posted by comfortablynumb

I've been using this for the past 2 years now. It hasn't given any problems yet [touchwood!], is quite accurate and doesn't take much time to top up the air pressure in all 4 tyres of my Scorpio. Only downside is it's more expensive than other inflators available in the market.

Link Image Makers (India) Pvt. Ltd.

If you want just a tyre pressure gauge, then that's available too: Link Image Makers (India) Pvt. Ltd.

Cheers,
Vikram

Originally Posted by S_U_N

^Thanks. Looks OK.
There are some more features like the 'Hold' feature and the pressure release outlet in this model which I like.

I will do survey in the market and get something in a couple of weeks.

I also vouch for this product. Have been using it for the last 9 months with no issues.

[ajay_satpute]

@Amit, @Vikram:
Where do I get this 'Digital Tyre Inflator' from?
And what is the cost of this?

[comfortablynumb]

Originally Posted by ajay_satpute

@Amit, @Vikram:
Where do I get this 'Digital Tyre Inflator' from?
And what is the cost of this?

You can buy it either from the manufacturer [link given below] or from Lokmanya Tyres in the lane adjacent to Garware College on Karve Rd. I don't remember clearly, but when I bought it, the cost was Rs.2200 or Rs.2300.

http://linkimageindia.com/ContactUs.html

Cheers,
Vikram

[S_U_N]

^Thanks guys.
I will try and get the price of the pressure gauge. It should be less than 500 rupees.

[sajo]

The NH4 bypass today was a mess of broken glasses and spilt fluids. No idea from which vehicles though. The usual suspects, Mantri Alpine/Crystal Honda puncture and the Bavdhan exit (puncture) were the sights of these accidents. Did not actually see which vehicles were involved though, because of a mad jam, with people forming 3-4 lanes where there have to be 2 and all that other nonsense.