I just did an oil change on my vette and used the amsoil. You guys ever used it? Seems like its running a bit smoother.. This is the stuff I used.

http://www.amsoil.com/catalog.aspx?c...-EA&zo=1973595

Just wondering what results you guys have had with it. My cousin swears by it!?

Tks.

 

That's what I use as well along with the Amsoil oil filter, I haven't done any oil analysis' but numerous others have and found great results. It's pretty difficult to truly tell the difference between two quality synthetic oils strictly going by 'seat of the pants' feel but I like it for it's supposed longevity/extended drain period stability and it's various specs/test results.

 

Switched to the stuff this year and so far so good. Check with forum member subdriver since he's a dealer and forum vendor. He's also very knowledgable and can provide enough data to drown in

 

Top notch stuff according to the test results. But the price difference between it and any name brand synthetic with regular 3000 - 5000 mile changes isn't worth it to me. If I were to run 25000 miles between changes I would use it but I don't

 

Never had problems with it. But I never had problems using any of the other major synthetics.

Some people will claim it destroyed their engines (just like people do about many things). I have yet to see evidence to support this.

 

Good job! I only use AmsOil in the engine, trany, and rear-end......I love this stuff......you can't go wrong. Expensive stuff, but for the Vette, I don't care......Period.

 

What the Signature series is supposed to do is extend drain intervals. 15.000 for severe use. Even longer with oil analysis. Its also a 0 weight which is great if your 0 degree and colder cold starts. If not Amsoil has 'other' oils at less money and protect as well.

 

0W30 is still a 30 weight oil. It just flows much quicker at start up so oil gets to critical parts quicker than a 5W30 or 10W30. The quicker oil flows at start up the better since most engine wear occurs when you first start your engine.

 

It only gets to engine areas faster at extreme lower temps. Lets say at 0 degrees 10w30 flows at the same rate as 0w30. But not at -20. For most of us 5w30 is fine where ever you winter. Not flaming you for using that oil just addressing that the Signature series 0w30 excels in extreme cold and long mileage interval between service. In most conditions and if changing oil every 5 to 10 thousand miles you can get the same protection with Amsoil XL 5w30 at almost half the price.

 

Sorry, but I think you are mistaken. Read "Motor Oil University" at Bob's The Oil Guy website.

 

I read it. Need to re read it. Probably a few times. LOL It mainly addresses hot flow and such. Here is a link to another discussion about cold poor points and weights.http://forums.corvetteforum.com/c5-t...5-30w-oil.html

 

Myself as well.

 

Some Amsoil is not that exspensive. Mobil 1 at O'reilly's auto parts was $8.59 a qt the other day. I priced Amsoil XL 5w30 at my preferred customer price. It was $5 something a qt.

 

Oil prices are never consistent.

Spending 5 minutes the other day saved me 20 bucks on an oil change. (autozone 5 qts of pennzoil ultra and k&N filter for $39 instead of $45 just for the oil alone)

Napa and usually the local motorsports and import car parts shops will carry amsoil. Ive seen it go from $5 to $9 a qt at different stores right across from each other....

 

I started using Amsoil back in 1979, and used it in all of my vehicles until recently. I change the oil and filters in all of my cars at 5,000 miles, so I don't think there is any real benefit in Amsoil over Mobil 1 which I now use. Mobil 1 is a little cheaper and a lot easier to find.

 

Mobil 1 is not cheaper for its Amsoil equivalent. Amsoil XL series. To me Amsoil is easier to get. I order on line and Big Brown delivers.

 

Since the closest AMSOIL distribution center to me is DFW, I get next day delivery from Big Brown!! Couldn't be easier. I can remember a few years ago finding 5W-30 M1 on the shelf at Wally World was a real crap shoot.

 

My orders come out of Virginia. Order on Sunday or by Monday a.m. usually have it Wednesday.

 

Instead of getting the facts, you're just going to declare that 10W30 flows the same at 0°C (I assume you meant °C) as 0W30 using the declaration "Let's say"??? How about getting the facts instead of making up BS??? Here's a few links for you:

http://www.widman.biz/English/Calculators/Graph.html
http://www.mobil.com/USA-English/Lub...l_Economy.aspx
http://www.mobil.com/USA-English/Lub...l_Economy.aspx
http://www.infineum.com/Documents/AP...ons%202010.pdf


Use the graph/calculator in the first link and input the data points for 40°C and 100°C for 0W30 and 0W20 from the second and third links and you'll see the difference in flow at 0°C between 0W20, 0W30, 5W30, and 10W30 (you'll replace the 15W40 and 20W50 data points). Even at the highest ambient temperatures in the dead of summer, there is a difference in absolute viscosity between 0W30 and 5W30 and the difference just gets larger as temps decrease. The graph really should have three data points to make an accurate graph but it's better than nothing. If it had a third data point at 0°C or less, the differences would be even more.

The fourth link shows the absolute viscosity for the "W" ratings in mPa-s for cranking viscosity and pumping viscosity. If you're not familiar with those two tests, I would suggest you get on the SAE website and order a copy.


There's a lot more reading you need to do, the pour point of oils really has nothing to do with viscosity at low temperatures...that's why the SAE developed the Low Temperature Cranking/Pumping tests for the "W" rating system.

 

Unless you're tracking your Vette why change from the Mobil 1 brand? I beat my car pretty good so I'm running Amsoil for good reason.