<![CDATA[GMTC - Chevy Truck Forum - Maintenance & Upkeep]]> http://www.gmtruckclub.com/forum/ Discuss the best ways to maintain your Chevy Truck and other GM vehicles. en Tue, 21 May 2013 20:44:53 GMT vBulletin 60 http://www.gmtruckclub.com/forum/images/styles/FunkyFresh/misc/rss.png <![CDATA[GMTC - Chevy Truck Forum - Maintenance & Upkeep]]> http://www.gmtruckclub.com/forum/ Which gear oil? 2005 yukon xl http://www.gmtruckclub.com/forum/showthread.php/123310-Which-gear-oil-2005-yukon-xl?goto=newpost Wed, 15 May 2013 13:49:05 GMT I an going to change the gear oil in my rear diff today or tomorrow. My manual recommends 75w-90 synthetic gear oil. The only 75w-90 that I can find is for limited slip diffs, I... I an going to change the gear oil in my rear diff today or tomorrow. My manual recommends 75w-90 synthetic gear oil. The only 75w-90 that I can find is for limited slip diffs, I have a G80 Gov-Loc. I am looking at using Mobile 1 75w-90, amsoil, or Mobile Delvac (if I can find quarts of it. alternatively it is $47 a gallon) I do tow a boat very often in the summer, but not very far. I have read of guys going to 75w-140 because they tow. Does anyone feel as if this is necessary? Any recommendations on which gear oil to use? I have read some bad things about Lucas and Royal Purple. I would consider amsoil. But, can not find a place near me that carries it or that I can get a significant discount at. I can pickup 3 quarts of Mobile 1 for $22 after discounts. Any suggestions? I may attempt to get a hold of @1st Synthetics and see what his prices are for the 75w-90. Looking online I can only buy amsoil in cases of 12.

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I am going with amsoil, I will return the mobile 1 I just purchased. I spoke with Scott from 1st Synthetics and his prices for guys on the forum are pretty darn good. So, i will be driving down to get it tomorrow. ]]> Pikey http://www.gmtruckclub.com/forum/showthread.php/123310-Which-gear-oil-2005-yukon-xl This could go under a few places, so I am posting here... http://www.gmtruckclub.com/forum/showthread.php/122503-This-could-go-under-a-few-places-so-I-am-posting-here?goto=newpost Mon, 06 May 2013 01:29:12 GMT I posted a while back about oil leak issues..... I still got them and I am not going to get the gaskets fixed... I am searching for a new (used) silverado.... but I am posting... I posted a while back about oil leak issues..... I still got them and I am not going to get the gaskets fixed... I am searching for a new (used) silverado.... but I am posting this so other frustrated Silverado owners can see this mess...

Clearly an oil leak:



And then combine that problem with this:

(Ashe deposits on the spark plugs)..... Those were put in at 180,000 and I am at 226,xxx. Burning a little oill huh? Between the "leak" and the burning I go though 2 quarts every 4-6 weeks to top off this (Otherwise "good") (sarcasm) well designed GM engine.

And no, I am not just blowing smoke... you can read all over the place that the 5.3L is a ***** when it comes to oil issues long term. (I wish I knew this before buying the truck).

This truck came with 100,000 mile tune up advertised everywhere from GM... I am glad I have been replacing plugs and cables about every 80,000 miles, but the plugs are this bad after 56,000 miles?





Wet oil on the spark plug? Really GM?



I also do my oil changes every 3 months/3,000-4,000 miles.
]]> PantheraUncia http://www.gmtruckclub.com/forum/showthread.php/122503-This-could-go-under-a-few-places-so-I-am-posting-here <![CDATA[Location of oil drain plug for '08 V6 Silverado?]]> http://www.gmtruckclub.com/forum/showthread.php/122475-Location-of-oil-drain-plug-for-08-V6-Silverado?goto=newpost Sun, 05 May 2013 20:25:20 GMT I've changed the oil before but I can't remember where the drain plug is. Instructions online say it's on the passenger side, but the only one I can find - and the one I think I remember it being - is on the driver side. ]]> daweinah http://www.gmtruckclub.com/forum/showthread.php/122475-Location-of-oil-drain-plug-for-08-V6-Silverado synthetic oil http://www.gmtruckclub.com/forum/showthread.php/121340-synthetic-oil?goto=newpost Mon, 22 Apr 2013 12:46:39 GMT Has anyone had any experiance with Royal Purple Oil? Good,Bad or Indifferant? Has anyone had any experiance with Royal Purple Oil? Good,Bad or Indifferant? ]]> zippstripp http://www.gmtruckclub.com/forum/showthread.php/121340-synthetic-oil