NashSS Posted January 28, 2007 Report Share Posted January 28, 2007 I have searched and was wanted to get some input on what I have intentions of doing. I did want to change all my fluids to Royal Purple but all you guys use Mobil 1 and swear by it and thats what I've used in the past so I'm going to continue to use it but I'm also wanting to put in Mobil 1 synthetic tranny fluid and synthetic gear fluid for the front and rear end and was wondering if anyone is running the mobil 1 synthetic tranny and front and rear end fluid and it improved overall operation and made everything feel smoother and maybe improve some mpg? I feel like a dumbass asking this do we AWD's have a transfer case? I know its a dumb question but I'm new to the AWD SSS. Also what oil filter do you guys use? I've always used Fram and never had a problem but I've heard good things about the mobil 1 oil filter. Quote Link to comment Share on other sites More sharing options...
misterp Posted January 28, 2007 Report Share Posted January 28, 2007 I believe and practice a strategy of changing fluids frequently; I don't wait until they are completely shot before fluid/filter changes. For me using all Mobile-1 fluids and the over-the-counter Fram filter frequently is economically similar to using a much more expensive line of products (AMSOil, RP, etc). Plus I can get everything I need 2-blocks away at Walmart. The only thing I would advise is on the ATF, you will get better mileage/performance with the stock tranny if you use Dexron (non-synthetic). Using synthetic ATF actually causes the tranny to operate at lower fluid pressures, synthetic ATF will produce softer shifts and well long story short the stock tranny, converter, & shift tuning are meant to be used with Dexron; just change it yearly, don't run it so long it goes sour on you. Transfer case - read the how-to! Mr. P. Quote Link to comment Share on other sites More sharing options...
cadillacbob Posted January 28, 2007 Report Share Posted January 28, 2007 Once again...I agree with Mr. P...I am sure Royal Purple is great stuff...The reason I get Mobil 1 stuff is I can get it at any Mobil gas station if I am on a trip and 'all hell breaks loose'...LOL I use the synthetic DEX trans fluid in my transfer case though... I know the blue stuff is better...but the warantee issue keeps popping up for me...Hate to have them drain 'Blue' fluid from my transfer case if it fails...although I hear our transfer cases are virtually bulletproof!!! But murphy's law states that mine will be the first to fail...LOL I THINK the noise/operation of said devices got better after my changes...could be psychological...kind of like when my truck runs better after I wash it!!! LMAO I plan on trying 'sea foam' later this week as my SS has over 60k on it now...although I drive like a wuss!!!...and should have carbon build-up on my motor...LOL IMHO...you cant go wrong with a synthetic Mobil filter...I worked at a filter plant for Delphi when I started at General Motors, and the synthetic filters performed a little better... What it all comes down to is like Mr. P said...just change fluids regularly, and you might prevent a costly repair...In fact I like selling my vehicles with me being able to say "I only used synthetic fluids"...Just my 2 cents... Quote Link to comment Share on other sites More sharing options...
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