Amsoil 20/50 air cooled oil

rcaradimos · 07-29-2007, 06:12 PM

lubeoilsales.com
amsoil.com

The above links are very interesting to read,
Any thoughts on this product
Bob

jbrinkley · 07-29-2007, 10:11 PM

anyone

mb911 · mb911's Garage

thats what I use got several cases of it

cstreit · cstreit's Garage

I like their 20/50 racing oil myself. Higher ZDDP content.

Dark Horse · 07-30-2007, 07:56 AM

This is the oil to use for air cooled race/track cars, according to Amsoil Tech Support. They confirmed that it was "loaded" with zinc and phosphorus. I'm using it in my 3.0 SC engine after my recent rebuild, and plan to monitor engine and oil condition with oil analysis.

rcaradimos · 07-31-2007, 03:09 PM

Amsoil claims that it will reduce oil consumption, higher smoke point for less burn-off. Is that a fair statment, for you guys that are using the product...

azasadny · azasadny's Garage

I have been using this oil since March 2007 and my engine temps have dropped 10 degrees, I'm very happy with the AMSOIL 20W50. No new leaks... just the same old leaks I had before...

EarlyPorsche · 07-31-2007, 05:12 PM

Is it worth it? I have the old SL rated Rotella T and its like $9 a gallon. You guys pay about that or more per quart. In the end do you think your engine will be that much more trouble free? Like if mine goes 150,000 miles do you think yours will go 200,000 miles? Just asking, its important to consider these things. I used to use synthetic in everything I owned. Now just in my 997.

T77911S · 08-01-2007, 09:50 AM

my brother uses the AMSOIL in his 930, i use castrol synth. i am too lazy to order amsoil. plus i dont see the high temps he does.

azasadny · azasadny's Garage

I buy AMSOIL 20W50 at my local Murray's Auto Parts for $8 a quart. I also use the AMSOIL 5W30 in my 2007 MazdaSpeed3.

cgarr · cgarr's Garage

I dont see any Brad Penn oil on their comparison chart? or are they only matching to pure Synthetic oils?

Porsche_monkey · 08-01-2007, 01:04 PM

Quote:

Originally Posted by EarlyPorsche

Is it worth it? I have the old SL rated Rotella T and its like $9 a gallon. You guys pay about that or more per quart. In the end do you think your engine will be that much more trouble free? Like if mine goes 150,000 miles do you think yours will go 200,000 miles?

I agree. Good oil, regular oil changes and you'll be sick of the car before the engine pukes. And if it does puke, it would have puked with synthetic also. IMO synthetic oil is superior, it's just not likely to make any difference to me.

donstevens · donstevens's Garage

Quote:

Originally Posted by rcaradimos

Amsoil claims that it will reduce oil consumption, higher smoke point for less burn-off. Is that a fair statment, for you guys that are using the product...

Bob,

I have been using Amsoil 20W50 High Performance oil for about 8 years. The statements are definitely fair but to be honest, it really depends on what you started with. and the condition of your car. Amsoil will definitely burn off less, and therefore reduce consumption and have a higher smoke point than any conventional oil. But if you are already using a synthetic oil, these benefits will be hardly noticeable between brands. Relative to the condition of your car, any claim is assuming that the car is in normal working coandition. Synthetics can help prolong component life but no oil is going to cure a worn out engine/gearbox.

On the subject of the Motorcycle formula 20W50 vs. the racing 20W50 vs. the high performance 20W50, I don't think the formulas are all that different. There may be a litlle more ZDDP in the racing oil, a little more of some other additive in the motorcycle oil to contend with wet clutches and gears, but at the end of the day is it going to be significant in a street driven 911? I doubt it. In fact, one could argue the other additives that lead to higher TBN and other anti-oxitant, anti-acid capabilities of the High Performance product enable the oil to last for longer drain intervals which make the HP product more suitable to a street driven car. At $1.20 retail difference in price, I personally think the High Performance 20W50 is a better value.

I happen to be an Amsoil dealer as well as Alan Williams, the guy at Lubeoilsales. He sure has done a much job with his website though. I have to give him credit for that. Mine is more mundane at www.lubedealer.com/dstevens. Anyone can become a dealer, or a preferred customer, to take advantage of price breaks and I can help you find the best deal for your use/ application.

Don

PatrickB · PatrickB's Garage

Check this out... http://www.lnengineering.com/oil.html

cnavarro · 08-03-2007, 11:52 AM

The Amsoil 20w50 Harley/V-Twin oil is definately a great oil. We did some dyno testing last week and it made the most power of all the m/c oils we tested (m1 vtwin, royal purple max cycle, etc). I can't say anything on wear yet, since I haven't sent in the used oil samples for each set of runs on each oil for comparison. I'm willing to bet as we didn't run each oil much more than 20-30 min, there really won't be anything substantial in the oil analysis worth commmenting on.

PatrickB · PatrickB's Garage

Charles~
I've used the M1 VTwin per your sugggestion for the past 2 oil changes. It's virtually eliminated all start up smoke. Previously, I was using the M1 15-50 extended wear.
I was curious if you had recently checked the P&Z contents of the M1 Vtwin, as on your chart it showed a test date of 11/05?
Also, what is the M1 MX4T? I'm not familiar with that one...

Thanks!

cnavarro · 08-03-2007, 01:09 PM

The amsoil made like 1 hp more than the m1 v-twin, but overall, the synthetic motorcycle oils made well over 10+ more hp than even Castrol GTX. I'd personally be happy with either the m1 vtwin, amsoil harley, or the royal purple max cycle. The Swepco and Brad Penn oils might not make as much hp than their synthetic counterparts in the same weight groups, but still offer equal or better levels of wear than the more expensive oils in our over-the-road testing last year.

The 10w40 version of the m1 vtwin is called mx4t.

Wavey · 08-03-2007, 01:19 PM

Charles, I posted this question on the recent EOS thread but you may not have seen it -

I read your excellent article last winter and found it very enlightening. I had just changed my oil using the new formulation M1 15/50 and only had about 1K miles on it, so I added one bottle of EOS.

I have since noticed a couple of things: quite a bit less valve train noise (yes the valves are properly adjusted), and definitely less startup smoke. My '88 has about 83K on it, and I always let the engine idle for a minute before shutting off to reduce the startup smoke, but still got some occasionally. With the EOS it's all but gone, all the time. Can you explain this effect? Thanks!

cnavarro · 08-03-2007, 03:34 PM

I can't explain it, I've seen the same effect and heard of the EOS doing the same for others. Maybe it is forming a better, thicker anti-wear film. Your guess is as good as mine. I just know it works.

donstevens · donstevens's Garage

Quote:

Originally Posted by cnavarro

The amsoil made like 1 hp more than the m1 v-twin, but overall, the synthetic motorcycle oils made well over 10+ more hp than even Castrol GTX.

Charles,

When I first read this I was thinking whoa, +10 HP more on a motorcycle engine is very significant. Then I realized that you are talking about a 911 engine. What was the baseline HP of the motor on GTX? I am assuming about 300HP based on on my understanding that synthetics typically enable an engine to achieve about 3% over conventional oil.

Have you done other dyno runs of before and after HP vlaues on automotive oils? Per my comment above about the different formulas of Amsoil 20W50 products I'd be curious to know of the Motorcyle 20W50 makes more power than the High Performance 20W50.

Don