# royal purple vs. amsoil **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [November 7, 2008, 1:30pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780 "2008-11-07T13:30:17Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![94excivic](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/94excivic/32/5263_2.png) [@94excivic](https://forums.speedlife.net/u/94excivic)\ **Post date:** [November 7, 2008, 1:30pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/1 "2008-11-07T13:30:17Z")
anyone prefer one over the other, and why…i am curious as they are similar in price, and ive heard +/- about both…just wondering if anyone had any experiences… ---
**Author:** ![JayS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jays/32/15375_2.png) [@JayS](https://forums.speedlife.net/u/JayS)\ **Post date:** [November 7, 2008, 1:52pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/2 "2008-11-07T13:52:11Z")
I went RP in my trans because that’s what all the cool kids do over at [LS1gto.com](http://LS1gto.com). Honestly, when you’re talking about super high end oils like RP vs Amsoil, I think the differences are going to be pretty minor. ---
**Author:** ![ZOMGVTEK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zomgvtek/32/5063_2.png) [@ZOMGVTEK](https://forums.speedlife.net/u/ZOMGVTEK)\ **Post date:** [November 7, 2008, 2:03pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/3 "2008-11-07T14:03:19Z")
Ive heard people say how much better AMSOIL is over RP, and the other way around. Theyre both very good oils, so unless there is some data out there directly comparing them both… ---
**Author:** ![theblue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/theblue/32/5074_2.png) [@theblue](https://forums.speedlife.net/u/theblue)\ **Post date:** [November 7, 2008, 2:15pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/4 "2008-11-07T14:15:40Z")
I like redline better… ---
**Author:** ![94excivic](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/94excivic/32/5263_2.png) [@94excivic](https://forums.speedlife.net/u/94excivic)\ **Post date:** [November 7, 2008, 2:17pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/5 "2008-11-07T14:17:16Z")
can you get redline oil anywhere local or does it have to be online? ---
**Author:** ![theblue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/theblue/32/5074_2.png) [@theblue](https://forums.speedlife.net/u/theblue)\ **Post date:** [November 7, 2008, 2:24pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/6 "2008-11-07T14:24:32Z")
there’s a distributor a few miles from where I live in rochester… they sell to anybody it you know the secret handshake or have a decoder ring. ---
**Author:** ![Toda\_Party](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/toda_party/32/7354_2.png) [@Toda\_Party](https://forums.speedlife.net/u/Toda_Party)\ **Post date:** [November 7, 2008, 2:28pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/7 "2008-11-07T14:28:57Z")
FWIW i’ve heard shitty things bout RP i’d go redline/amsoil over RP ---
**Author:** ![psphinx81](https://avatars.discourse-cdn.com/v4/letter/p/e9a140/32.png) [@psphinx81](https://forums.speedlife.net/u/psphinx81)\ **Post date:** [November 7, 2008, 3:05pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/8 "2008-11-07T15:05:34Z")
amsoil ---
**Author:** ![MrSmith](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mrsmith/32/5254_2.png) [@MrSmith](https://forums.speedlife.net/u/MrSmith)\ **Post date:** [November 7, 2008, 3:38pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/9 "2008-11-07T15:38:51Z")
motul ---
**Author:** ![steve2k1116](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/steve2k1116/32/5230_2.png) [@steve2k1116](https://forums.speedlife.net/u/steve2k1116)\ **Post date:** [November 7, 2008, 3:40pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/10 "2008-11-07T15:40:01Z")
not a fan of royal purple, just my $0.02 ---
**Author:** ![rdandy5875](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rdandy5875/32/7511_2.png) [@rdandy5875](https://forums.speedlife.net/u/rdandy5875)\ **Post date:** [November 7, 2008, 3:42pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/11 "2008-11-07T15:42:33Z")
I’ve heard bad things about RP too, I ran it a few times, and I went back to m1 ---
**Author:** ![Motocrossx23](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/motocrossx23/32/5120_2.png) [@Motocrossx23](https://forums.speedlife.net/u/Motocrossx23)\ **Post date:** [November 7, 2008, 6:17pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/12 "2008-11-07T18:17:23Z")
i’ve used amsoil in every single one of my cars/bikes, never had a problem, i definitely recommend it. btw, the air force uses it to lubricate their landing gear on the C-130’s, they test the viscosity of the oil monthly to make sure it’s doing it’s job, it is supposedly able to hold it’s original viscosity for up to 25k miles. ---
**Author:** ![bigtymer7463](https://avatars.discourse-cdn.com/v4/letter/b/7ab992/32.png) [@bigtymer7463](https://forums.speedlife.net/u/bigtymer7463)\ **Post date:** [November 7, 2008, 6:19pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/13 "2008-11-07T18:19:05Z")
amsoil ftw, plus today me and layzie realized rp went up to 8.99 a quart! ---
**Author:** ![MPD47](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mpd47/32/7383_2.png) [@MPD47](https://forums.speedlife.net/u/MPD47)\ **Post date:** [November 7, 2008, 6:20pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/14 "2008-11-07T18:20:37Z")
Roil Purple =! High End. Redline or Amsoil. I run Redline in the Porsche transaxle and Amsoil in the BMW Engine and diff (e30) and e39 m5 diff. ---
**Author:** ![Inn-Tune](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/inn-tune/32/7588_2.png) [@Inn-Tune](https://forums.speedlife.net/u/Inn-Tune)\ **Post date:** [November 8, 2008, 8:16am UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/15 "2008-11-08T08:16:54Z")
I like Amsoil personally, but most cars are fine with any decent oil as long as it’s changed frequently and the vehicle isn’t abused. If it’s a moderate to heavily modified turbocharged setup like a lot of the cars we work on, then running something like Amsoil is a little cheap insurance and I recommend it. ---
**Author:** ![ILC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ilc/32/5337_2.png) [@ILC](https://forums.speedlife.net/u/ILC)\ **Post date:** [November 8, 2008, 8:20am UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/16 "2008-11-08T08:20:25Z")
> [@Motocrossx23](#): > > btw, the air force uses it to lubricate their landing gear on the C-130’s, they test the viscosity of the oil monthly to make sure it’s doing it’s job, it is supposedly able to hold it’s original viscosity for up to 25k miles. We do? Its hydraulic fluid in the struts, MIL-something something. IDK if amsoil is the manufacturer. As for the slipping surfaces like where the strut meets the truck its lubed with hydraulic fluid too. And its smells TERRIBLE! god i hate it! Almost as bad as the smell of the bacteria in the summer that grow insanely fast and die from the de icing fluid. I haven’t been on a gear lube but I’m 95% sure its just your normal Mil spec grease through a grease gun. Like how it was on the previous plane that I’ve worked on ---
**Author:** ![Motocrossx23](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/motocrossx23/32/5120_2.png) [@Motocrossx23](https://forums.speedlife.net/u/Motocrossx23)\ **Post date:** [November 8, 2008, 8:43am UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/17 "2008-11-08T08:43:07Z")
> [@ILC](#): > > We do? > > Its hydraulic fluid in the struts, MIL-something something. IDK if amsoil is the manufacturer. As for the slipping surfaces like where the strut meets the truck its lubed with hydraulic fluid too. And its smells TERRIBLE! god i hate it! Almost as bad as the smell of the bacteria in the summer that grow insanely fast and die from the de icing fluid. > > I haven’t been on a gear lube but I’m 95% sure its just your normal Mil spec grease through a grease gun. Like how it was on the previous plane that I’ve worked on From what my uncle said yeah lol, he was stationed at McGuire’s AFB in New Jersey where he worked on them for 15+ years. Although i’m not sure WHAT part of the landing gear used it, I’m obviously not too familiar with planes lol. ---
**Author:** ![rj-92](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rj-92/32/7310_2.png) [@rj-92](https://forums.speedlife.net/u/rj-92)\ **Post date:** [November 8, 2008, 9:42am UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/18 "2008-11-08T09:42:21Z")
> [@94excivic](#): > > can you get redline oil anywhere local or does it have to be online? Oddy’s sells it. ---
**Author:** ![ILC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ilc/32/5337_2.png) [@ILC](https://forums.speedlife.net/u/ILC)\ **Post date:** [November 8, 2008, 9:46am UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/19 "2008-11-08T09:46:00Z")
> [@Motocrossx23](#): > > From what my uncle said yeah lol, he was stationed at McGuire’s AFB in New Jersey where he worked on them for 15+ years. Although i’m not sure WHAT part of the landing gear used it, I’m obviously not too familiar with planes lol. Cool beans, I’ve only been on the c-130 for 6 months lol. So I would take your uncles word for it. The other plane was much different. I just don’t remember a monthly landing gear oil analysis. Or even where there would be landing gear oil. The struts are a huge reservoir but thats hydraulic fluid… which i can’t see anyone using in anything practical on a automobile that shit is brutal ---
**Author:** ![Motocrossx23](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/motocrossx23/32/5120_2.png) [@Motocrossx23](https://forums.speedlife.net/u/Motocrossx23)\ **Post date:** [November 8, 2008, 1:24pm UTC](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780/20 "2008-11-08T13:24:46Z")
it might just be manufactured by amsoil then, i have no idea what details about it are, just that they apparently used it and it tested very well lol [Next page](https://forums.speedlife.net/t/royal-purple-vs-amsoil/57780.md?page=2)