Royal Purple

[RedGalant2k1]

I don't use "racing" oils because I also street my car. I never said I used a racing oil. You're comparing a synthetic oil to a non-synthetic oil, hence my apples to oranges comment. "Far outperforms"? Where do you get this shit?

This is my last comment to you on this thread.

I've used both commercially availible oils in both my Galants. In my personal experience AMSoil far outperforms Mobil One both in filter performance and oil performance.

I'm not basing my statements in direct opposition to you.

Its not my fault Mobil downgraded their regularly availible oil. At present I won't use anything else but AMSoil. Just remember that comes from using both in two Galants for a combined mileage exceeding 150,000 miles.

I don't give lip service to something I can't honestly support. Just get over the fact that I dislike the performance of Mobil in my cars.

[VegasMatt]

I am Team Amsoil on my new motor since I put it in last month. No issues. Before that even when I had the SDS I was running Mobile 1 with a good filter.

[Serstylz2]

Original poster, use Mobil 1 or Castrol Syntec, don't go thru the hassle of locating Amsoil, I had regular GTX in my engine and when the mechs took it out after 3k miles they said "you sure you want this oil change? This oil is PERFECT."

Granted, I'm not turbo'd

[WarmAndSCSI]

0W-40 is regularly available and it's not downgraded in any way. Some other weights of Mobil 1 are also still very high in percent of Group IV PAOs. I believe the very popular 5W-30 was one of those that now receives a large proportion of Group III hydrocracked oil. Nobody actually knows.

I'm not saying you're wrong by liking AMSOIL - it's really good stuff. I'm just citing your lack of any support as to WHY it's better. You say "performance" yet you give no evidence, even subjective.

[VegasMatt]

I think on my next oil change I may use what Warm suggested.


I use Amsoil because its cheaper at Autobacs when I pickup a case during each yearly MOD visit. :)

[WarmAndSCSI]

Here's a perfect example of AMSOIL's marketing finesse: http://www.technilube.com/faqs_info/synth_diff.php

You see these nice tables of data. They use nice cryptic terms such as "Four Ball Wear" and TBN... Problem is they don't even explain the conditions under which these tests are performed. Four Ball Wear... para. whatever. What is a para? It's clear that they chose outliers to compare their own best result to. For the TBN, it's not even specified after how many miles. My last point of criticism is the comparison of cost per mile. Complete garbage. Nobody is going to actually leave AMSOIL in their engine for 25,000 miles. That's just ignorant unless you ramp up your drain intervals while getting an oil analysis every time you increase the interval. It's called really good marketing and that's the only reason people are convinced AMSOIL is better.

[Ruslik]

thAnks for the responses everyone

[laxinwarrior]

Mobil 1 also makes a 0w-30 that is very similar to the 0w-40 synthetic. It isn't BMW LL certified but it's a much higher quality than the typical 5w-30 mobil 1. Also in my research(at least in my area), to get a synthetic that is blended from group IV base oils, the Mobil 1 is significantly cheaper than AMSOIL or Royal Purple.

Semi off-topic: http://www.eneos.us/index.php

Has anyone seen or used this brand at all? I have yet to see any research comparing this to any of the other brands discussed.

[WarmAndSCSI]

The 0W-30 is good too. GM factory fills the LS7 in the Corvette with it. It's probably also a Group IV based oil. Too thin for most force-fed engines, though.

I wonder if GReddy sells that ENEOS oil under their brand. I've never looked into it before.

edit: well I thought they filled the Corvette LS7 with that... I can't find any information to back that up, though.

[6G72gearhead]

Hondas F1 car is filled with 0w-50 Eneos oil, btw.

I've been looking into it, and I think the 0w-30 is a group IV oil, I havent found it directly, and it looks as if its just too thin for use by Porche and BMW, so maybe thats why it hasnt recieved certification.

I've been looking for an excuse to switch to a 0W-XX oil for awhile now, I may just start doing this. Especially with racing season starting, I get to bleed the brakes and do an oil change regardless of interval for the start of the season. I dunno if I will hit the gearbox or not though. Everything else will be greased or flushed.