mobil or amsoil
 

trying to figure out wich oil is better

mobil is a automotive emission legal oil , you can get amsoil in a off road type of oil which does not have to meet the EPA bullchit

Royal Purple. <g>

I ran Mobil 1 Vtwin for the last 6 years. Last oil change I ran Amsoil Racing 20w-50. Both kept oil pressure well. The Amsoil is red out of the bottle, then turned brown with use and was definitely less viscous than the Mobil at ambient temp. I noticed when changing my leaking KE valve cover bases that the amsoil didn't seem to create that hard to remove film on parts that the Mobil created. This is completely unscientific observation, but I think I'm going back to the Mobil 1 vtwin next year. I just put Valvoline racing to winter it.

I use the 15/40 Amsoil marine/diesel oil. I also use the AE filters, they come in a few sizes. This year I used the big one, it holds 2 quarts. Worked great and added oil to the sytem.

the Vtwin oil is good oil , a lot better then the standard Mobil 1 you buy for a street car . Keep in mind Epa required all the street legal oil to have no Zinc and many more things that off road oil can still have.

just want to mention that amsoil has v-twin oil 20w50 also....

i run amsoil and i like it

amsoil contains zinc which the epa doesnt want?

Zinc is good for wear!

Let me know if you choose Amsoil. Im a independent dealer.

www.lubedealer.com/s&wsynthetics

Me too...for the last 5 years. Nothing has broke, so I'm staying with it!!!!:drink::evilb:

Amsoil in everthing

Yea I am a dealer also, they make a oil or lube for almost anything......

they have 20w50 z rod oil now with high zinc. Ive always used there 15w40 diesel oil on stock motors and all my customers boats. heck i even use there 10w30 small engine oil in my garden tractor and it starts in 40 below canadian weather

i think amsoil has a new one out,replacing the 3000 series...havent seen it yet but its supposed to be 15w50...maybe the dealers can chime in...

I used mobil one v twin since my rebuilds in 08, i did them this year as my alum heads finally gave way. one cam had grooves in the lobe, im not saying this is from the mobil one as when the cams were bought in 07 crane had some cams that werent hardened enough. I just switched to amsoli v twin oil which according to all tests that i read surpassed mobil 1 v twin in every catagory including amount of zinc. have a few hours on it with the amsoil and really like the sound and oil pressure readings, if you close your eyes and just listen to the engines they sound smooth..ohh and wix/napa filters...just fyi i also found out that the standard 1060 filter from napa only flows 9 gallons per hour and the 1060R flows 28 gallons per hour.

I'm as guilty of this as anyone- I use Amsoil religiously- but can we all agree that a high quality synthetic has advantages over a standard oil, and which ever one you use is going to protect your engine better. Beyond that, what's the measurable benefit even if say Amsoil is better than Mobil 1- my rings are gonna last 10 more hours?

http://www.mobiloil.com/USA-English/...duct_Guide.pdf

http://www.mobiloil.com/USA-English/...t_Engines.aspx

Jeff

How does the filtration efficiency compare between the two filters?

Is one gravel strainer compared to the other?

Jeff

amsoil 15/50 dominator , its what i use

i can agree to that but if the oil is a street legal oil it will not have some additives in it that oil a few years ago did have. This is the reason to go with a off road type of oil that does not need to meet the EPA regulations to be street legal.

15/40 in a gas motor?

filtration was great on both, the flow rate is the size of the holes for flow, much bigger on the R. I change oil every 25 hours, so far I am liking the Amsoil too.

X2, With Ao filters..

I wouldn't recommend running a motorcycle oil in your boat engine. Motor cycle oils have less friction modifiers for better clutch performance. Amsoil makes three different types of high Zinc content oil for harder working engines. The reason for the low Zinc in current automotive oils is that the Zinc causes the catalytic convertors to deteriorate. The Amsoil 15w40 Marine / Diesel oil is the lowest cost high zinc oil, then you have the Z-Rod famiy and then the Dominator racing oil. When choosing an oil please look for SAE standardized testing to compare them. I have never seen a test yet that showed that any brand was better then Amsoil, and I have looked. On another note WIX R series filters are 60 micron filters or should I say strainers. If you are looking for the best you can get and have room for a taller filter check out the Amsoil EA076, it's almost 2 quarts. My oil is so clean after 2 seasons that I hate to through it away.

v-twin oil is blended for harleys...the motor oil doesnt go in the clutch,and it is high in zinc (and vitamins)

I'm a Amsoil dealer too.

The 2 quart filter works great my oil still looks like new, put about 40+ hrs on it so far. I will do the same this fall when I winterize.

Works great, been running it for several years. I like it better than the 10/40 Marine oil.

Yeah, why not? You can use any diesel oil in a gas motor, just not any gasoline oil in a diesel.

didnt know if there were different additives for diesel as for gas

Well, there is different additives for diesel, to control the soot and byproducts of combustion, but they are overkill for a gas engine. In a gas application, its just gonna keep that engine that much cleaner.

I ran the Amsoil 15W40 Marine/Diesel oil in a 454 for a couple of seasons. Great oil.

Ken

amsoil dominator

Any info on Amsoil Z-Rod 20-50 (ZRFQT)? Supposed to have more anti-oxident and corrosion inhibitors. I was thinking of changing from Amsoil AROQT.

They are both similar products with the major difference being TBN. The ARO is stronger in that department. But here are links to both spec sheets for you.

http://www.amsoil.com/lit/databulletins/g2212.pdf

http://www.amsoil.com/lit/databulletins/g2883.pdf

Mobil 1 All the way-------- Used it in most of my boats over the years and Never had a failure.... All my cars also! Easy to get !Even my 34 scarab with nitrous and still never had a failure.


Jim

Amsoil 15/50 Dominator Racing Oil. Not cheap,but nothing better.
And I still change it every 15 hours.