Rotors and Oil weight ?

[FlaskTL]

Pretty sure my rotors are slightly warped as I am getting a good bit of vibration when hitting the brakes, especially going down hill. What brand of Rotors do ya'll prefer? I want to get quality and not some cheap set. (First time changing Rotors on my truck but I have changed many on my jeep) I'm going to be running HD pads as well.

 

Secondly, my truck suffers from the dreaded oil burn as a result of the AFM engine. Speaking with a friend the other day he suggested running 10w30 instead of 5w30. First off, would this be bad to use a heavier weight? Secondly, could a heavier weight oil actually increase time between when I normally lose a quart of oil? Might be a stupid question but I can't learn if don't ask.

 

FLASK

[Carder09]

Go with power stop rotors, I think many of us on here use them and for the price, they are more than worth it. As for oil, are you using conventional or full synthetic? I'm not sure if synthetic helps though it supports higher engine temps allowing for less break down, but that may help as a first resort.

[amc31b]

I like the Raybestos rotors myself. If you want the best, get the advanced technology rotors from Raybestos. I also like raybestos pads by the way. You can get them from rockauto.com or from Napa as the Napa Ultra Premium.

As far as your oil, experimenting with different brands and weights of oil can help. You are out of warranty so go ahead. I like the Quaker state ultimate durability myself, maybe you could try that in 10w-30 if you live in a warm climate.

Good luck

[markw8]

5w verses 10w only matters to a cold engine at lower temps.

 

Mark

[Z45]

5w-30 and 10W-30 are the same viscosity at engine operating temps, as stated above the only difference is thier cold flow properties. There is no magoc cure for oil consumption, using better oil can help to some extent. Oil with evaporate at engine temps. Synthetics have a lower evap rate with the really good one as low as 7-8%. API engine oil only has to meet 15% to be API certified. GM considers 1 qt of oil every 2000 miles to be normal and one of the reasons they do is because of the volatility (evaporation) factor of oils having only to be below 15%, weather synthetic or not, 13% (?) for dexos1.

 

10W-30 could help if the volatility factor is lower with less evaporation but it won't be much.

[jdubub]

SSBC Big Bite rotors here. I use Amsoil in my current 2010 and I used it in my 2008 Sierra. No consumption issues, or at least not significant enough to notice.

[amc31b]

5w-30 and 10W-30 are the same viscosity at engine operating temps, as stated above the only difference is thier cold flow properties.

 

10W-30 could help if the volatility factor is lower with less evaporation but it won't be much.

 

 

Bingo! That is exactly where I was going recommending 10w-30. 10w-30 usually has a lower volatility factor (or rate) than its 5w-30 counter part, even in the same brand/type of oil. Many high heat engines or air cooled engines require 10w-30 just for this very reason, to help mitigate oil evaporation from high internal engine temp and other factors. Harley davidson and most air cooled lawn mowers are examples of manufacturers using this same thought process.