What oil weight is everyone using?

[agent]

Mobil 1 5w-30 synthetic.

[Naplm00]

anyone ever get blackstone oil anlysis done? I was thinking of doing it for fun

[cobraken]

anyone ever get blackstone oil anlysis done? I was thinking of doing it for fun

whats this?

[Tbolt]

so 15w-50 is most popular?

[Hick]

15w bazillion

[10/10ths]

Try Polaris Labs if you are interested in having oil analysis done. I am biased here but this is where I work and I deal with oil samples all day long. Polaris is ISO17025-A2LA accredited, which means they are rigorously audited to ensure that they actually do what they say they do. Pretty sure blackstone is not, although they might be cheaper.

The key to reliable analysis is to sample correctly-engine oil at full temp. sample taken using new tubing/jars and taken at the time of an oil change. Also make sure to provide as much info as possible with the sample like type and weight of the oil, car type, any additives or additional oil that has been added etc. The basic test packages will tell you a lot, but there is no limit to what you can learn about your engines condition with additional tests...at a cost of course.

If you go with Polaris send me a PM and I can be sure to personally run your oil sample.

Justin

http://www.polarislabs1.com/why-polaris.php

[Naplm00]

Try Polaris Labs if you are interested in having oil analysis done. I am biased here but this is where I work and I deal with oil samples all day long. Polaris is ISO17025-A2LA accredited, which means they are rigorously audited to ensure that they actually do what they say they do. Pretty sure blackstone is not, although they might be cheaper.

The key to reliable analysis is to sample correctly-engine oil at full temp. sample taken using new tubing/jars and taken at the time of an oil change. Also make sure to provide as much info as possible with the sample like type and weight of the oil, car type, any additives or additional oil that has been added etc. The basic test packages will tell you a lot, but there is no limit to what you can learn about your engines condition with additional tests...at a cost of course.

If you go with Polaris send me a PM and I can be sure to personally run your oil sample.

Justin
http://www.polarislabs1.com/why-polaris.php

seems legit1 but the price is wayy more than blackstone. If i was building a race motor you would be on my short list

[Mlarsen]

I've been using Penn Grade 1 20w50 , high zinc man.

[delatlanta1281]

Royal Purple 10w30.

[mrsleeve]

hey 10: whats the cost like for a advanced for a diesel engine. Been meaning to send a sample out from my truck some time to some one. its been a while.

[Atreus]

dumb question, but moar zinc=profit; why?????

[619E30]

TOTAL 10w-40 in my rebuilt motor with 40k. Should rebuild your motor

[BlueBMW]

I must be running too thin. I'm using the BMW (castrol) 5w30 synthetic I get from work since its free. I do seem to consume a lot of oil tho... About 1qt every 1500 miles Maybe its time to switch to something heavier.

It seems silly of me to ask (since I'm a profession BMW technician) but what exactly are the benefits etc of heavier vs lighter oils? I understand maintaining viscosity at various temperature ranges, but don't you also want the lightest temperature permissible oil in order to reduce drag on the moving parts of the engine?

[stegosaurus]

Mobil 1 synthetic 15w50 with no burning.

[walktheboard]

this thread=perfect for my question.
I'm using 5w20, way too light?
I told my dad about the majority of r3v using heavier weighted oil, and he says that it's just more for the engine to work through. I suggested 20w50.
my oil pressure light flickers in the lower RPM's, and shines very dull at cruising speeds. no knocking