Question About my G35X "Manumatic" Transmission

[mperazza]

Hi.

Does anyone know or has anyone experienced any issues with using your "manumatic" to help slow your car down, as you would say if using a traditional manual? I live in a very hilly area and use the manual setting on the transmission to help slow down. I also use this function if coming up on a light that changes abruptly.

I ask this question because I have a 2008 G35X with 22,000 miles and had the rotors replaced at 20,800 miles. Luckily, Infiniti replaced the rotors but they did it very reluctantly.

Thanks for any information.

[kmckis1029]

i use "engine braking" all the time in my 2005 g35x... (im at 60k miles, i put 40k since i brought it) i havent had any problems and its even talked about in the G35 manual...

The good thing about the transmission is it wont let you down shift too low by a mistake... thats where you can mess up the transmission.

Since i know i like to "engine brake" my transmission fluild has been changed at 30k miles to the new matic S fluild and since my engine will hit High rmps often from "engine braking" i dont skimp on having a good synthetic oil in my G.

you got to pay to play...

[mperazza]

Thanks for the info.Have a great holiday!

[suby01]

stock brakes and rotors are complete garbage. i guess they would be good for someone who never goes over 60mph or has to actually make a quick stop for any reason whatsoeever. they way i drive my brakes and rotors went at 15k. i pushed them to about 19k.

upgraded to stillens all the way around and now 15k later still hanging on. plus now i have a lot more power than stock. so i would say its worth the upgrade im guessing they will start to go at around 20k. and can hold out to 22-25k.

[CoupeVQ35CVT]

stock brakes and rotors are complete garbage. i guess they would be good for someone who never goes over 60mph or has to actually make a quick stop for any reason whatsoeever. they way i drive my brakes and rotors went at 15k. i pushed them to about 19k.

upgraded to stillens all the way around and now 15k later still hanging on. plus now i have a lot more power than stock. so i would say its worth the upgrade im guessing they will start to go at around 20k. and can hold out to 22-25k.

Spending upwards of $35-45k on a "luxury sports sedan/coupe" like a G you'd think you're at least getting quality material. Apparently not, as the case is with my less expensive Altima Coupe. It seems Nissan likes to skimp out on the brakes as I've noticed other members complain about the same, among other things. Makes you go " are you thinking Nissan?"

[Sentientbydesign]

stock brakes and rotors are complete garbage. i guess they would be good for someone who never goes over 60mph or has to actually make a quick stop for any reason whatsoeever. they way i drive my brakes and rotors went at 15k. i pushed them to about 19k.

upgraded to stillens all the way around and now 15k later still hanging on. plus now i have a lot more power than stock. so i would say its worth the upgrade im guessing they will start to go at around 20k. and can hold out to 22-25k.

Let's clear this up a little. There's nothing wrong with the performance of the the G's brakes for infrequent emergency stops and "normal" driving. With those conditions, initial bite and braking power aren't bad.

The problem is that most of us brake hard regularly. This causes brake fade and the rotors are soft so they wear quickly. I read an article/forum post a while back that mentioned that luxury brakes are usually soft to improve emergency braking.

Spending upwards of $35-45k on a "luxury sports sedan/coupe" like a G you'd think you're at least getting quality material. Apparently not, as the case is with my less expensive Altima Coupe. It seems Nissan likes to skimp out on the brakes as I've noticed other members complain about the same, among other things. Makes you go " are you thinking Nissan?"

As such, there's nothing wrong with the brakes per se, they just weren't designed with spirited/track driving in mind. Aftermarket rotors and pads (Maybe Powerslot Cryos and Hawk HPS pads) will increase longevity and braking torque, but that emergency bite might be gone (the pads usually have to warm up a bit to have full friction).

[kmckis1029]

i have had two emergency stops in my G35x and i was impressed how well the ABS worked and the bite of the breaks. My G is dent free because of the great brakes...

But in most cases im engine braking... and barley press the brakes hard...

My only complaint is dust... my brakes have lasted 30k before a squeek can be heard... just hit 61k after changing brakes at 31k... and now i get a sound when i brake at low speed.

[CoupeVQ35CVT]

Let's clear this up a little. There's nothing wrong with the performance of the the G's brakes for infrequent emergency stops and "normal" driving. With those conditions, initial bite and braking power aren't bad.

The problem is that most of us brake hard regularly. This causes brake fade and the rotors are soft so they wear quickly. I read an article/forum post a while back that mentioned that luxury brakes are usually soft to improve emergency braking.

As such, there's nothing wrong with the brakes per se, they just weren't designed with spirited/track driving in mind. Aftermarket rotors and pads (Maybe Powerslot Cryos and Hawk HPS pads) will increase longevity and braking torque, but that emergency bite might be gone (the pads usually have to warm up a bit to have full friction).

That's the thing, I don't quite brake hard........not all the time. I use engine braking almost 50-80% of the time I'm out driving, mostly highway. I've driven my '06 Sentra 1.8S for 2-3 years and aside from what seemed like some rotor warpage, never had one squeal come out from that thing.

But I understand what you're saying about emergency braking and having enough bite for that while cold vs. longevity and less emergency braking power.