Bridgestone D697 air pressure

[mikel]

Having recently fitted a set of 265/60/18LT D697's to the 2.7 D4, I'm interested in what air pressures people run in these for general highway use. I plan to run 4psi above the placard pressures to start with and see how we go.

So far I'm pretty impressed with the ride quality etc but will be giving them a good run next week towing a 2t van to Victorian south coast and return to Sydney.

Thanks

[RobA]

Mikel hello. We have been running D697's on GOE 18" rims for the last 30,000km now. This included a very heavily loaded 4 month trip through the Kimberley and outback WA all towing our Ultimate camper.

Pressures run you will find in my FOLLOW ME reports on this forum. They are detailed by situation so should be simple to follow

We only run above placard when loaded and in very hot weather such as we have been experiencing over the last week since leaving Adelaide and travelling through central NSW to Caloundra and home again. We only go up 4 psi in these situations and keep a regular eye on the TPMS but having covered so many k's in the last year I know where to set them for each situaiton

Quite frankly we run 2-4 psi lower than placard for around town, short trips and empty and only go to placard when touring.

Rob

[jonesfam]

Make sure you use "Summer Air"!
"Winter Air" won't work this time of year.
remember to change over around late May.

https://www.aulro.com/afvb/images/smilies/biggrin.gif

[donh54]

Make sure you use "Summer Air"!
"Winter Air" won't work this time of year.
remember to change over around late May.

https://www.aulro.com/afvb/images/smilies/biggrin.gif

That would explain why so many southern trucks blow tyres in North Queensland and the NT. All that cold southern air when they were fitted on the rims! :twisted:

[TDV6]

I have to agree with Rob, as since fitting a TPMS and watching the pressure change as well as the increase in temperature for the car and van or just the car alone on trips from Caloundra to Melbourne and return (just got back Thursday), the placarded settings work well with the D697s.

Ryall

[Narangga]

Make sure you use "Summer Air"!
"Winter Air" won't work this time of year.
remember to change over around late May.

https://www.aulro.com/afvb/images/smilies/biggrin.gif

What allowance should I make for humidity??? :angel:

[Dagilmo]

I had a set (285 60 18) fitted by a Bridgestone select a few weeks ago. They put 48 in the front and 50 in the rears. Drove Perth to Monkey Mia today and performed perfectly.

[Redback]

This is funny, I've heard this rumour, it's all over the internet, so where pray tell to you find this summer air, can you store it to use to go north, or do I wait till I'm up north:o



































































:Rolling::Thump:

[Chops]

You could always fill them with nitrogen,,, carry a bottle with you for when you have to air down,,, then you can fill them up again ;)

[RHS58]

I had a set (285 60 18) fitted by a Bridgestone select a few weeks ago. They put 48 in the front and 50 in the rears. Drove Perth to Monkey Mia today and performed perfectly.

:eek: 48/50? Didn't you find the ride a little firm?

[Piddler]

:eek: 48/50? Didn't you find the ride a little firm?

My thinking as well?

[jonesfam]

We are looking at exporting Summer Air from Doomadgee to our poor Southern Cousins next year.

We are yet to decide how to package it, bottle, can, cardboard box?

But, Humidity will be included free of charge, not as an optional extra.

Look out for it in a $2 shop near you!

Jonesfam
PS We are negotiating with Aldi but they are worried it might explode.

[ramblingboy42]

I ran my D2 at 46psi on 265/75 697's.

The ride was never harsh and wear was very even.

Didn't really like the tyres much , but thats another story

[go-disco4]

Having recently fitted a set of 265/60/18LT D697's to the 2.7 D4, I'm interested in what air pressures people run in these for general highway use. I plan to run 4psi above the placard pressures to start with and see how we go.

So far I'm pretty impressed with the ride quality etc but will be giving them a good run next week towing a 2t van to Victorian south coast and return to Sydney.

Thanks

I run my 6 PSI above placard when fully laden. So 42 F and 48 R. Seems to work.

If unloaded they are a bit firm but OK.

GD-4

[PerthDisco]

Having recently fitted a set of 265/60/18LT D697's to the 2.7 D4, I'm interested in what air pressures people run in these for general highway use. I plan to run 4psi above the placard pressures to start with and see how we go.



So far I'm pretty impressed with the ride quality etc but will be giving them a good run next week towing a 2t van to Victorian south coast and return to Sydney.



Thanks



Have always run mine around 40psi on road and they are close to 80,000km now.

[Dagilmo]

:eek: 48/50? Didn't you find the ride a little firm?



It might be a measure of how bad the set coming off was but no. When I first drove it, I was really happy and was worried that they hadn't put much in them. Having said that, I did LCA rear bushes, tie rod ends and the new tyres (all well over due) so the overall improvement was fantastic, which might mask any harshness of the high pressures.

[AnD3rew]

Air pressures are one of the most variable things on the internet with everyone having their own opinion and pressure they like the most.

I have tried a lot of things but I am now back to close to placard.

I have a long range tank and when touring I pull a 1.5 tonne camper somI home with the heavy load number. 42 on the rear, I go to 38, 2 above placard for the front.

I find that works well. For what it's worth, which isn't much.

That's for a D3 on 18s

[donh54]

You could always fill them with nitrogen,,, carry a bottle with you for when you have to air down,,, then you can fill them up again ;)

I usually fill my tyres with a mixture (roughly 78 per cent nitrogen, 21 per cent oxygen, and 1 per cent argon) with a bit of good old cO2 and water vapour thrown in for good measure.

I've been using it for years, as it's low cost and quite readily available. :angel:

[Redback]

Loaded with the camper on, I go 44psi(placard pressure) in the rear, unloaded 40psi 2 above placard.

The front I go 36psi loaded or unloaded (7 above placard of 29psi) seems to be OK so far over the last 5yrs, but ks are not my major issue, tyre damage is our main problem, chips, cuts, sidewall cuts and up until recently, wheel allignment wear, so now hopefully not so many allignments and tyre rotations.

[PerthDisco]

Seems to be a good deal on these at the moment (at least for WA folk) $329ea via Bridgestone stores.

Was quoted $415ea a while back.

I think they must be matching the Tyresales.com.au offer.

[VK3GJM]

Fully loaded near GWM/axle weight limit with 160 kg ball weight towing approx 1500kg ultimate camper on bitumen on very hot days, rear 43 and front always 2 psi less 41 max, when braking you want max tyre displacement on the road. I have checked on extreme heat tyre pressure rises 3-4 psi with hot tyres, October 2015 through Windorah at 48 degrees in shade, pressure went as high as 49-50 psi rear.

offroad, rear 34 front 32 limit 80-85km/hr, upper 90. With extreme rocky section, like the strezlecki, I would go down to 28 rear and 26 front and limit speed to 65-70km/hr.

About to head north to the Savannah way and Kimberley, Will be putting the D697 through it's paces on Compomotive 18" rims.

ignore placard due to heavy modified D4, extra weight front and rear and now with Longranger tank. Highway weekend not heavily loaded 40psi less 2 front.

This time I will also be taking a Fluke temp gun to monitor tyre pressure for my own interest.

[BrianElloy]

You could always fill them with nitrogen,,, carry a bottle with you for when you have to air down,,, then you can fill them up again ;)

paying for Nitrogen filled tyres is the ULTIMATE scam.

check this out for some fun-facts Top 10 reasons not to put nitrogen in your tyres - YouTube (https://www.google.com.au/url'sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwi2hqrw9PjSAhXJ5lQKHaIlCNcQtwIIGzAA&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DbC nWvMleVD0&usg=AFQjCNFLUAt-apvCX6bZtN8cilo86j4ofw&sig2=uNP1TgkqKE5OxHoV-nJBFA)

[Russrobe]

paying for Nitrogen filled tyres is the ULTIMATE scam.

check this out for some fun-facts Top 10 reasons not to put nitrogen in your tyres - YouTube (https://www.google.com.au/url'sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwi2hqrw9PjSAhXJ5lQKHaIlCNcQtwIIGzAA&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DbC nWvMleVD0&usg=AFQjCNFLUAt-apvCX6bZtN8cilo86j4ofw&sig2=uNP1TgkqKE5OxHoV-nJBFA)

Disagree, for people who can never be bothered checking their pressures, worth every cent. Especially if the car's not driven often. Our cars(not the 4x4) run nitrogen and after 6 months, exact same pressure.

Most shops will chuck it in for $10 for all 4. Vs. $200 per front tyre that's worn down on the edge too far before noticed.

If you regularly check pressures though, yes, waste of money, but who has time for that.

Waste of money for 4x4 as constantly airing down anyway..

[BrianElloy]

Disagree, for people who can never be bothered checking their pressures, worth every cent.

disagree with your disagreement .... did you even check out the video link? there are scientific (physics related) reasons why its a scam.

but go for it dude - its your money!

[Chops]

I tend to agree with Russ on this. Your "scientific" stuff might be there to prove otherwise, but I can tell you through experience that it works.
Women don't tend to check anything on a car very well, and so my sister started running it, it ultimately, it's saved her a small fortune. She drives a crappy road five days a week, (about 70k+ a day), the car feels better on the road, and she's stopped going through as many sets of tires.

[Russrobe]

They can scientifically prove all they like. Real world tests are saving people thousands of dollars.

[Russrobe]

Fully loaded near GWM/axle weight limit with 160 kg ball weight towing approx 1500kg ultimate camper on bitumen on very hot days, rear 43 and front always 2 psi less 41 max, when braking you want max tyre displacement on the road. I have checked on extreme heat tyre pressure rises 3-4 psi with hot tyres, October 2015 through Windorah at 48 degrees in shade, pressure went as high as 49-50 psi rear.

offroad, rear 34 front 32 limit 80-85km/hr, upper 90. With extreme rocky section, like the strezlecki, I would go down to 28 rear and 26 front and limit speed to 65-70km/hr.

About to head north to the Savannah way and Kimberley, Will be putting the D697 through it's paces on Compomotive 18" rims.

ignore placard due to heavy modified D4, extra weight front and rear and now with Longranger tank. Highway weekend not heavily loaded 40psi less 2 front.

This time I will also be taking a Fluke temp gun to monitor tyre pressure for my own interest.
I followed your advice on air pressures regarding front and rear difference and i ran similar pressures trip wide with great results! Perfectly even wear, no punctures, next to no chipping.

Thanks again.

Couldn't be more impressed with the 697s, I've put them through hell and back over the last 6 weeks and you wouldn't even be able to tell they've left the tarmac. The LT version especially has very strong sidewalls (this one in the photo in particular was parked up with the sidewall squeezed up against a large rock last week, not to mention the rocky 5 minute long river crossing at El Questro.

Not even the sharp iron ore rocks through the Hamersley ranges and Wittenoom could make a dent.https://www.aulro.com/afvb/images/imported/2017/05/145.jpghttps://www.aulro.com/afvb/images/imported/2017/05/146.jpg

[rick130]

Disagree, for people who can never be bothered checking their pressures, worth every cent. Especially if the car's not driven often. Our cars(not the 4x4) run nitrogen and after 6 months, exact same pressure.

Most shops will chuck it in for $10 for all 4. Vs. $200 per front tyre that's worn down on the edge too far before noticed.

If you regularly check pressures though, yes, waste of money, but who has time for that.

Waste of money for 4x4 as constantly airing down anyway..


Dry air works the same as dry nitrogen, and FWIW I've carried stocks of nitrogen for years, always carried at least one D size bottle in the back of the Defender as I used it for work and the odd puncture. BTW, the nitro I use is high purity, not industrial, so has even less moisture than the industrial gas.
If an air compressor is regularly blown down and has a decent water separator fitted air and temp isn't an issue, and there is only about 2% difference in particle size, so permeation isn't an issue either.
On race cars we ran dry air, take the moisture out of air and pressures stay relatively stable. Pressure/temp climb is identical to nitro.

[Russrobe]

This is what I ended up with seeing as it was all about tyre pressure.

36psi front
38psi rear
For all of the Tanami as it was good conditions. 80-90 kmh

38psi front
42 psi rear
For all sealed roads. 110kmh

26PSI Front
30PSI Rear
For the Northern end of GRR right through to Mitchell Falls. Mostly 70kmh

Back to 36 PSI Front and 40PSI rear to finish Mt. Barnett onwards on the Gibb as the roads pretty good upped the speed a little to 80-90kmh

Adjusted the pressures to suit the road conditions and speed possible. Never went above 80kmh with pressures down low.