For the home "oil" changers - Mobil 1 0W20 - Better running motor?

[Short BuSX]

But why switch to Amsoil? Aside from the marketing? Its more expensive and harder to find, and for what?

I dunno what your drivin, is it that in your avatar? That thing looks heavy and slow! I think my automatic "rice" would spank that! Maybe that kid had 20 inch boat anchors or somethin!

[rjstaaf]

Consider this, Ford has been using the 4.6 SOHC V8 in cars since '94 and always specified 5W-30 for the motor until 2001 when they switched to 5W-20. Does anyone think after 7 years of building this motor they all of a sudden decided to build it to tighter tolerances?

I wouldn't buy the tighter tolerances BS that Ford uses. The real reasons are a slight improvement in fuel economy and better emissions to meet tightening requirements. The fuel economy improvement helps Ford's overall CAFE rating since they sell mostly SUVs these days.

My Mustang gets a steady diet of Mobil1 5W-30.

[rjstaaf]

Originally posted by deadman98
Hey beercan,

excellent article you posted If also you need more info on oil, go to www.bobistheoilguy.com this site and there forum will help gain excellent knowledge to great lengths to know what you need to know about oil.

Me personally, I use M1 5w30 SuperSyn and a M1 filter. I've been floating the idea of going with bypass filtration. For what I use my truck for though, I'm not sure if it's really worth it, just a thought,,,,,,,deadman98

Personally I think the guy should change his site to www.bobistheamsoilguy.com. There is some useful information there but, there is such an Amsoil slant that it seems like one big Amsoil commercial. I am usually pretty suspicous of people pushing a product that they have a vested interest in.

[onawrxhigh]

I am currently running amsoil in my wrx with fantastic results. I was using mobile 1 5w30 for the first two years and now i have had amsoil in for the last 7 months. yes it is expensive but if you pay 20 dollars to become a preferred customer you can get a quart of oil namely 10w30 for 4.85. this oil used with amsoils filter you can extend the drains up to 3 or more time the manufactures recommended intervals.

[rjstaaf]

Originally posted by onawrxhigh
I am currently running amsoil in my wrx with fantastic results. I was using mobile 1 5w30 for the first two years and now i have had amsoil in for the last 7 months. yes it is expensive but if you pay 20 dollars to become a preferred customer you can get a quart of oil namely 10w30 for 4.85. this oil used with amsoils filter you can extend the drains up to 3 or more time the manufactures recommended intervals.

How do you quantify "fantastic" results. I could see if you were comparing to dino oil or something but, I seriously doubt you would see or feel any difference between Amsoil and Mobil1. I do not make my comments lightly. I have used Amsoil and the only benefit I saw was the extended drain interval. To each his own, there is nothing wrong with Amsoil but I find it easier to just go down the street and get a case of Mobil1.

If you are extending your drain intervals that long I would hope you are doing oil analysis as well. That is the safest way to get the most out of it. I wouldn't push even Amsoil past the manufacturer's recommendation without doing oil analysis.

[onawrxhigh]

i quantify "fanatastic" results based upon the fact of comparing dino oil to mobil1 and mobil 1 to amsoil. I will describe what i mean. with dino oil i was changing my oil about ever 3500 miles religously in those 3500 miles my car would use not burn about 1/2 quart of oil. this is do to oil coking because of the turbo reguiring lube. with mobil 1 it was 1/4 quart and in 7 months with amsoil 0 oil useage. mobil one is a hydocracked (spelling) synthetic oil meaning it is derived from a dino oil base. amsoil is a pure man made synthetis oil from a synthetic base stock.

[rjstaaf]

Originally posted by onawrxhigh
i quantify "fanatastic" results based upon the fact of comparing dino oil to mobil1 and mobil 1 to amsoil. I will describe what i mean. with dino oil i was changing my oil about ever 3500 miles religously in those 3500 miles my car would use not burn about 1/2 quart of oil. this is do to oil coking because of the turbo reguiring lube. with mobil 1 it was 1/4 quart and in 7 months with amsoil 0 oil useage. mobil one is a hydocracked (spelling) synthetic oil meaning it is derived from a dino oil base. amsoil is a pure man made synthetis oil from a synthetic base stock.

Unless something has changed recently Mobil1 is a pure Group IV synthetic made with PAOs, not hydrocracked. Where are you getting your information?

[onawrxhigh]

then the other forums that i belong to the members there must not know what they are talking about becuase that is where i got my info. they where saying that their was a lawsuit brought by mobil against i believe castrol years ago stating that castrol was not true synthetic and it was hydrocracked. the lawsuit was won by castrol and they (mobil) started making the synthetics the same way.(hydrocracking). i will look into this. but it does not explain why i am getting zero oil use with amsoil and 1/4 quart with mobil 1 when my driving stile has not changed.

[rjstaaf]

Originally posted by onawrxhigh
then the other forums that i belong to the members there must not know what they are talking about becuase that is where i got my info. they where saying that their was a lawsuit brought by mobil against i believe castrol years ago stating that castrol was not true synthetic and it was hydrocracked. the lawsuit was won by castrol and they (mobil) started making the synthetics the same way.(hydrocracking). i will look into this. but it does not explain why i am getting zero oil use with amsoil and 1/4 quart with mobil 1 when my driving stile has not changed.

The guys on those other forums don't know what they are talking about. Are you sure you aren't talking about Autopia? I recall reading something to that effect over there. I would not believe 95% of what you read on any forum (except MOL of course).

Straight from Mobil's website FAQ.

Is Mobil 1 with SuperSyn™ a fully synthetic motor oil?

Yes, it is. To meet the demanding requirements of today's specifications (and our customers' expectations), Mobil 1 with SuperSyn™ uses high-performance fluids, including polyalphaolefins (PAOs), along with a proprietary system of additives. Each Mobil 1 with SuperSyn™ viscosity grade uses a unique combination of synthetic fluids and selected additives in order to tailor the viscosity grade to its specific application.

Polyalphaolefins (PAOs) are Group IV base stock which is fully synthetic, not hydrocracked.

As to the oil use, I can't speak to that as I don't know anything about your car. Which Mobil1 were you using then and which Amsoil are you using now? Is the car a daily driver? How many miles have you put on it in the these past 7 months and is the usage about the same as the time with Mobil1?

I have 0 oil use on my Mustang after 40,000 miles with Mobil1.

[onawrxhigh]

thanks for clearing up that mobile 1 is fully synthetic. it was not autopia but a wrx specific forum. to answer your other questions the wrx has 26,000 miles on it is a daily driver,it is a turbo charged and intercooled flat 4 (not inline), boost psi is a max from the factory at 14.5 psi, i was using 5w30 mobil1 and i am now using 10w/30 amsoil.when i was usinfg mobil1 i was changing every 3months or 3000 miles whichever came first i am now at almost 6000 miles with zero oil use with the amsoil. boxer engine tend to have more blow by than v6,v8 and inline motors. this motor being turbocharged requires oil for the bearings of the turbo and coolant to help cool the center cartridge of the turbo so a cool down period is not required, like on some older turbo cars. i tend to drive my car more aggressivly than others but i am far from abusive to the car and motor.

[Setec Astronomy]

Originally posted by onawrxhigh
...I was using 5w30 mobil1 and i am now using 10w/30 amsoil.when i was usinfg mobil1 i was changing every 3months or 3000 miles whichever came first i am now at almost 6000 miles with zero oil use with the amsoil.

There's your answer on why the consumption is different; you're using a different viscosity!

I have two GM 3800 V-6's that both have over 100K miles on them, fed a diet of Mobil 1, and have never had to add any oil between changes.

Reading this thread from the beginning, I also have to comment on the assertion that you wouldn't want to use 0W-20 vs. 5W-20 in the summer; the 0W is the WINTER viscosity portion of a multi-vis oil, both will act like 20 weight oils in the SUMMER. As was mentioned, Mobil recommends their zero weight oils anywhere a 5W-20, 5W-30, or 10W-40 are specified. I have used the 0W-30 in my engines which specify 5W-30; my only gripe is that the Mobil 1 0W-30 is almost impossible to find now locally (it was easy when it first came out).

FWIW, my friend has a Hyundai with a 10 year powertrain warranty, and I have it in writing from Hyundai that use of 0W-30 will not violate the warranty.

Oh, and Beercan, API/SAE require that oils be compatible with each other (so, like, if you're at a gas station and need a quart, it won't seize your motor), so I doubt your sludge problem was created by mixing oil brands.

[rjstaaf]

Originally posted by onawrxhigh
thanks for clearing up that mobile 1 is fully synthetic. it was not autopia but a wrx specific forum. to answer your other questions the wrx has 26,000 miles on it is a daily driver,it is a turbo charged and intercooled flat 4 (not inline), boost psi is a max from the factory at 14.5 psi, i was using 5w30 mobil1 and i am now using 10w/30 amsoil.when i was usinfg mobil1 i was changing every 3months or 3000 miles whichever came first i am now at almost 6000 miles with zero oil use with the amsoil. boxer engine tend to have more blow by than v6,v8 and inline motors. this motor being turbocharged requires oil for the bearings of the turbo and coolant to help cool the center cartridge of the turbo so a cool down period is not required, like on some older turbo cars. i tend to drive my car more aggressivly than others but i am far from abusive to the car and motor.

One reason you are probably getting less blowby is that you are using a higher viscosity oil. 10W-30 is heavier at startup and throughout the heat range than 5W-30. That might account for what you are seeing. If you want to do a serious comparison you might try an Amsoil in the 5W-30 range or even Mobil1 in 10W-30 and see if your results change.

Not to be argumentative but, I had a vehicle with a boxer motor for several years and also ran Mobil1 in it with absolutely no oil use



I loved that bike, smoothest motor and tranny of any bike I have ever ridden. Had to give it up when my son was born. I actually made money on the deal over what I paid for it.

[onawrxhigh]

its unfirtunate that you had to give up such a sweet bike. do you think the turbos requirements could be affecting how the oil is being used or now not used because of the 10w30 vs the 5w30

[rjstaaf]

Originally posted by onawrxhigh
its unfirtunate that you had to give up such a sweet bike. do you think the turbos requirements could be affecting how the oil is being used or now not used because of the 10w30 vs the 5w30

Not sure, don't have that much experience with turbos. The easiest way to test this would probably be to try Mobil1 10W-30 and see if your results hold after a couple of oil changes.

[onawrxhigh]

i will try that once i use up all my amsoil