Royal Purple vs. Amsoil

mcclintock89 · 08-19-2009, 08:45 PM

Well before winter hits this year i'm gonna change my diff fluids and transfer case. All i'm sure for the first time, and i'm sittin at 48k miles.

I'm torn between Amsoil highly talked about by all titantalkers, and Royal Purple highly talked about by all of my gear head buddies.

I looked up pricing for both for ATF syn for the trans and 75w140 and 75w90 oils it's all about the same.

Any input is appreciated.

AF-Medic · 08-19-2009, 09:52 PM

I say get whatever is cheaper and readily available. They are both quality oils. Don't fpr get to change the transfer case fluid. My diffs were black at 7k with factory fill. I changed to Amsoil and it still looks great. I did put RP tranny fluid in the transfer case

mcclintock89 · 08-19-2009, 10:23 PM

well more readily available to me would be the amsoil. and i have to order it. blah. I'm also considering a full tranny flush with amsoil atf.

vilim12 · 08-19-2009, 10:44 PM

Quote:

Originally Posted by mcclintock89

well more readily available to me would be the amsoil. and i have to order it. blah. I'm also considering a full tranny flush with amsoil atf.

Make sure its Matic J or Matic S

mcclintock89 · 08-20-2009, 09:11 AM

yea it's matic J compatible. I've been readin good stuff about amsoil in the trannys.

toddk9 · 08-20-2009, 09:54 AM

save a few bucks and buy the Walmart gear lube 75w-140. Only $10 a quart for full synthetic oil and just change it more. I change mine every spring.

TK

HemiETR · 08-20-2009, 10:09 AM

Change to AMSOIL, love this stuff. Change my oil once a year and still looks great.

Screw Walmart they mess up our nation by running out mom and pop stores and low paying jobs. I refuse to spent a cent there! And yes I would pay more at a mom and pop store.

Quote:

Originally Posted by toddk9

save a few bucks and buy the Walmart gear lube 75w-140. Only $10 a quart for full synthetic oil and just change it more. I change mine every spring.

TK

AF-Medic · 08-20-2009, 10:22 AM

Quote:

Originally Posted by HemiETR

Change to AMSOIL, love this stuff. Change my oil once a year and still looks great.

Screw Walmart they mess up our nation by running out mom and pop stores and low paying jobs. I refuse to spent a cent there! And yes I would pay more at a mom and pop store.

If Walmart shut down it would case havoc on the economy and huge job losses. Walmart didn't ruin the economy. It's a free enterprise system. They are bigger and stronger and can offer more at a cheaper price. I'm all about the mom and pop stores but most of the time they dont offer what I want. Do you avoid home depot, Lowes, Best Buy and all the other Big box stores.

Walmart synthetic is good lube but it will cost yo umore to do the drain and fill once a year and dispose of it than buy a upper tier synthetic and leave it in there for 30- 50k miles.

vilim12 · 08-20-2009, 10:28 AM

[quote=AF-Medic;1814750]If Walmart shut down it would case havoc on the economy and huge job losses. Walmart didn't ruin the economy. It's a free enterprise system. They are bigger and stronger and can offer more at a cheaper price. I'm all about the mom and pop stores but most of the time they dont offer what I want. Do you avoid home depot, Lowes, Best Buy and all the other Big box stores.

Exactly, if mom and pop stores could offer wal marts whole inventory im sure theyd have more people going there too. Correct me if im not mistaken but im sure Wal Mart was once a mom and pop company long ago?

toddk9 · 08-20-2009, 11:08 AM

hey guys...lets not hijack the topic..

I don't think Amsoil/RP synthetics are that much better then Mobil 1/Walmart brand or any other synthetic. I know mechanics who hate Royal Purple with a passion. Amsoil is more of the hype then anything. I do not know of one auto failure that was caused by the oil. In most cases, it is from owner neglect or poor design. For every car that has 200k miles from synthetic, there is one with dyno oil. It is doing your proper maintenance. I was just telling him he could save a few bucks, about $5 for every quart.

My truck rear differential has 2 quarts of Mobil 1 75w-140 and 1 quart of Walmart 75w-140 and both are synthetic fluids.

TK

artacus · 08-20-2009, 04:54 PM

Did a drain and fill (about 5 qts) with royal purple max atf about 5k miles ago running just fine. Got oil from my local 4 wheel parts on sale for about 11.99 a qt.

HemiETR · 08-20-2009, 06:15 PM

Yea, let's not hijcack the thread. We all know Walmart is the axis of evil to the economy and they are the true terrorists of America along with the banks. They use all government resources, i.e. welfare/medical cause their pay sucks and they make millions.

Go AMSOIL!!

BTW, I run the 100:1 mix AMSOIL in my weedeater/blower when its suppose to be 40:1 the 2 strokes run clean as a whistle, no smoke and I swear by this stuff.

Quote:

Originally Posted by AF-Medic

If Walmart shut down it would case havoc on the economy and huge job losses. Walmart didn't ruin the economy. It's a free enterprise system. They are bigger and stronger and can offer more at a cheaper price. I'm all about the mom and pop stores but most of the time they dont offer what I want. Do you avoid home depot, Lowes, Best Buy and all the other Big box stores.

Walmart synthetic is good lube but it will cost yo umore to do the drain and fill once a year and dispose of it than buy a upper tier synthetic and leave it in there for 30- 50k miles.

SHoffman · 08-20-2009, 07:07 PM

Amsoil is great stuff, I swear by it as does everyone I know that uses it or has used it.

If you need some below MSRP pricing let me know.

-S

bj2007 · 10-28-2009, 08:15 PM

stay away fom royal purple, alot of ls1 guys have been getting bad results from it. as far as i know our engines are 60% identical to theirs.

pipho · 10-30-2009, 05:33 PM

Ive ran both and seem the same to me. RP in my F150 and just put Amsoil in my Titan. I had the same debate RP or Amsoil same price same reviews the only reason I went with Amsoil was to try something else out.