amsoil 5-30 XL, ASL, or mobil one

Topline · 08-07-2007, 03:02 AM

For the synthetic motor oil users out there, I would love to hear your thoughts on the three motor oils. I have never used synthetic oil and would like to begin using it on my 07 Si sedan, which I drive aggressively from time to time. Amsoil's website recommends three different kinds. http://www.amsoil.com/scripts/runisa...msoiloaf:index

It seems that whenever anyone talks about using Amsoil, they are referring to the ASL "model" rather than the XL. However, I'm not planning to use a long oil change interval, which may defeat the purpose of ASL. I'll probably go with a 7500 mile interval which would be perfect for the XL. At the same time, the ASL is a Group IV oil and the XL a Group III, and would prefer to use a better oil.

For those who think that the XL is sufficient, how would that compare to Mobil 1? I have heard various rumors that Mobil 1, which claims to be a true Group IV synthetic oil, may actually be Group III. If this is so, any thoughts on Amsoil XL vs. Mobil 1?

Sorry for the laborious explanation, thanks for any input.

Summary: Do I actually need Amsoil ASL? If not, should I use Amsoil XL or Mobil 1?

nayilsi · 08-07-2007, 04:01 AM

why not mobil 1 ?

id go for mobil.... brand loyalty i guess... been seeing their commercials since i was a kid.

MADDOGSI · 08-07-2007, 04:14 AM

I would say the series 2000 0w-30 is the AMSoil best for your car. Or the Mobile 1 syn. Both have shown high in test.

judacris · 08-07-2007, 10:04 AM

i noticed a good difference on the mobil 1 change, but next time i'm doing it my self and putting either Q Horsepower in or Q High revving. Maybe some of both!

moxom · 08-07-2007, 10:52 AM

Quote:

Originally Posted by Topline

However, I'm not planning to use a long oil change interval, which may defeat the purpose of ASL. I'll probably go with a 7500 mile interval which would be perfect for the XL.
Summary: Do I actually need Amsoil ASL? If not, should I use Amsoil XL or Mobil 1?

Use whichever you want as there is no appreciable difference in performance or engine wear between the those products.

Quote:

Originally Posted by Topline

If this is so, any thoughts on Amsoil XL vs. Mobil 1?

No one can say for sure which one is better because no one has independently tested M1 vs. XL. However, either lube is more than adequate; this is a Civic we're talking about after all.

**ImTheVoiceOfGod** · 08-08-2007, 01:34 AM

Royal Purple!

FunkNasty777 · 08-08-2007, 01:44 AM

I too am a Royal Purple whore...

Ceedot · 08-09-2007, 01:09 AM

I am 3

Topline · 08-09-2007, 01:36 AM

What do you guys like about Royal Purple? How does it compare to other synthetics you've used?

4DoorWhore · 08-09-2007, 01:41 AM

Go to this link, it might help you choose one
http://my.prostreetonline.com/t2540.htm

**ImTheVoiceOfGod** · 08-09-2007, 01:59 AM

Basic run-down of the ProStreetOnline tests.

Quote:

Following our average calculations, the 350Z put down 224.59 hp and 220.46 ft/lbs Stock.
Following our average calculations, the 350Z put down 232.78 hp and 217.43 ft/lbs with the MOBIL1.
Following our average calculations, the 350Z put down 231.52 hp and 224.35 ft/lbs with the Greddy.
Following our average calculations, the 350Z put down 237.49 hp and 223.81 ft/lbs with the AMSOIL
Following our average calculations, the 350Z put down 242 hp and 226.53 ft/lbs with Royal Purple.

Once again Royal Purple FTW!!

FunkNasty777 · 08-09-2007, 02:58 AM

IF you buy Royal Purple, buy in bulk online - you will save mucho $$$

Monty · 08-09-2007, 12:35 PM

Looks like I'll have to get a 350Z with my next purchase of Royal Purple.

4DoorWhore · 08-09-2007, 02:23 PM

Quote:

Originally Posted by FunkNasty777

IF you buy Royal Purple, buy in bulk online - you will save mucho $$$

Yeah I got a case of 12 on ebay for $75 including shipping.

**Yodums** · 08-09-2007, 03:01 PM

Quote:

Originally Posted by 4DoorWhore

Go to this link, it might help you choose one
http://my.prostreetonline.com/t2540.htm

Straight from that link:

Quote:

Well hello all! This is my first post on here and I hope it will shed some light on a commonly misunderstood topic. I am an 18 year independent AMSOIL synthetic lubricants dealer and run Hi-Tech Oil Co. I also have been in the automotive repair and maintenance field for over 20 years, so I have a tad bit of experience in this field.

I read the, "oil test", and found it to be of little or no value. (Gasp! Did he really say that?). You bet I did! First of all, what information can be gleaned from a controlled dyno test vs real world performance are two different things entirely. The horsepower and torque differences amongst the oils tested was minimal at best. I certainly wouldn't recommend anyone go dumping out their Mobil 1 because another oil delivered 1.7 more horsepower in a dyno test.

Oils are manufactured to a viscosity range. For example, a 5W-30 falls within a range of, "thickness", and can actually vary a bit. If you have an oil that is on the, "thicker", side of this range it generally will protect engine parts better while sacrificing 1.7 horsepower, (or whatever), because it is a, "thicker", 5W-30 and thus creates more drag, reducing power a tad. While on the other hand, we can have a, "thinner", 5W-30 oil that wont protect engine parts as well, but will generate more power in a dyno test. Does this make one oil better or worse than the another? Absolutely not. There are many different factors to an oil and its formulation. Anointing one oil over another as, "superior", because it made 1.7 more horsepower, (or whatever), in a garage dyno test, is not an accurate, or valid way to evaluate an oil. Indeed, for this reason, dyno test results are not used by the S.A.E., (Society of Automotive Engineers), or A.S.T.M., (American Society for Testing and Materials).

There are standard and accepted A.S.E. and A.S.T.M. test results that are used by engineers to determine an oils performance vs other oils and this test data can be found on a given oils Product Data Sheet, that can be had from any oil manufacturer. This is one industry accepted method of comparing various oils.

Also, keep in mind, what is good for a race car doesn't automatically mean it is good for a street car. An oil that performs well on the race track may very well not be ideally suited for the entirely different world of a street car that has to deal with an entirely different set of demands and needs than a race car does.

If any of you have any questions, please feel free send them my way.

***0720Steve*** · 01-09-2008, 02:49 PM

so are most people running the regular or the extended life amsoil?

lionelp · 01-09-2008, 02:59 PM

I've ran mobil 1 5w-30 since I got it... why not use the oil that's designed for the engine?

mfisher1967 · 01-09-2008, 08:08 PM

Amsoil SSO 0W-30, Pennzoil Platinum 5W-30 or Mobil One 5W-30 in that order.

Other Options: Redline, Royal Purple, Q Horsepower

tite681 · 01-09-2008, 08:34 PM

I think all the synthetics mentioned are all good. The think the easiest to find and cheapest one is Mobil 1.

08-07-2007, 03:02 AM	#1 (permalink)
Topline Junior Member Join Date: Feb 2007 Posts: 29 iTrader: 0 / 0%	amsoil 5-30 XL, ASL, or mobil one For the synthetic motor oil users out there, I would love to hear your thoughts on the three motor oils. I have never used synthetic oil and would like to begin using it on my 07 Si sedan, which I drive aggressively from time to time. Amsoil's website recommends three different kinds. http://www.amsoil.com/scripts/runisa...msoiloaf:index It seems that whenever anyone talks about using Amsoil, they are referring to the ASL "model" rather than the XL. However, I'm not planning to use a long oil change interval, which may defeat the purpose of ASL. I'll probably go with a 7500 mile interval which would be perfect for the XL. At the same time, the ASL is a Group IV oil and the XL a Group III, and would prefer to use a better oil. For those who think that the XL is sufficient, how would that compare to Mobil 1? I have heard various rumors that Mobil 1, which claims to be a true Group IV synthetic oil, may actually be Group III. If this is so, any thoughts on Amsoil XL vs. Mobil 1? Sorry for the laborious explanation, thanks for any input. Summary: Do I actually need Amsoil ASL? If not, should I use Amsoil XL or Mobil 1?

08-07-2007, 04:01 AM	#2 (permalink)
nayilsi Senior Member Join Date: Jul 2007 Location: You mean nothing to me Posts: 9,648 iTrader: 0 / 0%	why not mobil 1 ? id go for mobil.... brand loyalty i guess... been seeing their commercials since i was a kid. Last edited by nayilsi; 08-07-2007 at 04:09 AM.

08-08-2007, 01:34 AM	#6 (permalink)
ImTheVoiceOfGod Soup-R-Charged! Join Date: Dec 2006 Location: SoCal Age: 27 Posts: 29,975 Corsport Fanboi iTrader: 18 / 100%	Royal Purple! __________________ Know the California Vehicle Laws! Save yourself a ticket! You can haz see my build thread.

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08-07-2007, 04:14 AM	#3 (permalink)
MADDOGSI Senior Member Join Date: Mar 2006 Location: Derby Ks. Age: 33 Posts: 436 Scotty iTrader: 3 / 100%	I would say the series 2000 0w-30 is the AMSoil best for your car. Or the Mobile 1 syn. Both have shown high in test.

08-07-2007, 10:04 AM	#4 (permalink)
judacris Junior Member Join Date: Aug 2007 Location: Chapel Hill, NC Posts: 17 iTrader: 0 / 0%	i noticed a good difference on the mobil 1 change, but next time i'm doing it my self and putting either Q Horsepower in or Q High revving. Maybe some of both!

08-08-2007, 01:44 AM	#7 (permalink)
FunkNasty777 Senior Member Join Date: Mar 2006 Location: Ocean State Age: 25 Posts: 205 Jon iTrader: 1 / 100%	I too am a Royal Purple whore...

08-09-2007, 01:09 AM	#8 (permalink)
Ceedot Senior Member Join Date: Jun 2007 Location: Yonkers, NY Age: 20 Posts: 127 Justin iTrader: 0 / 0%	I am 3

08-09-2007, 01:36 AM	#9 (permalink)
Topline Junior Member Join Date: Feb 2007 Posts: 29 iTrader: 0 / 0%	What do you guys like about Royal Purple? How does it compare to other synthetics you've used?

08-09-2007, 01:41 AM	#10 (permalink)
4DoorWhore Senior Member Join Date: May 2007 Location: NH Age: 29 Posts: 1,958 Ryan iTrader: 2 / 100%	Go to this link, it might help you choose one http://my.prostreetonline.com/t2540.htm

08-09-2007, 02:58 AM	#12 (permalink)
FunkNasty777 Senior Member Join Date: Mar 2006 Location: Ocean State Age: 25 Posts: 205 Jon iTrader: 1 / 100%	IF you buy Royal Purple, buy in bulk online - you will save mucho $$$

08-09-2007, 12:35 PM	#13 (permalink)
Monty Senior Member Join Date: Sep 2006 Posts: 332 iTrader: 1 / 100%	Looks like I'll have to get a 350Z with my next purchase of Royal Purple.

01-09-2008, 02:49 PM	#16 (permalink)
*0720Steve* TWFA5FTMFW Join Date: Feb 2007 Location: San Diego Age: 26 Posts: 29,574 Resident Si Sedan Hater Hater iTrader: 20 / 100%	so are most people running the regular or the extended life amsoil?

01-09-2008, 02:59 PM	#17 (permalink)
lionelp Senior Member Join Date: Aug 2007 Location: Edmonton, AB Posts: 860 Lionel Pereira iTrader: 0 / 0%	I've ran mobil 1 5w-30 since I got it... why not use the oil that's designed for the engine?

01-09-2008, 08:08 PM	#18 (permalink)
mfisher1967 Senior Member Join Date: Dec 2007 Location: South Houston, Texas Posts: 109 Mark Fisher iTrader: 0 / 0%	Amsoil SSO 0W-30, Pennzoil Platinum 5W-30 or Mobil One 5W-30 in that order. Other Options: Redline, Royal Purple, Q Horsepower

01-09-2008, 08:34 PM	#19 (permalink)
tite681 Senior Member Join Date: Aug 2007 Location: Caliphoria Posts: 2,032 USDaMn iTrader: 0 / 0%	I think all the synthetics mentioned are all good. The think the easiest to find and cheapest one is Mobil 1.