Cryoma Labs

oil viscosity?

Dec 10, 2006 by svenstadt | Posted in Maintenance & Repairs

What's the deal with oil viscosity? for example, 10W30 as opposed to 10W40? i know that the W means use it in winter. but whats the difference between the series of numbers?

yes the W does stand for Winter. The numbers are the viscocity (thickness) of the oil. The smaller the number the thinner the oil. So a 10w30 would start out as a 10 weight cold and when the engine warms up it would be a 30 weight. The 10w40 would start out at a 10 weight and turn into a 40 weight. Some people use SAE 30 oil which is a 30 weight all the time but that is hard on you car in the cold and for start up. The smaller the number in the front the faster it get to the top of the engine. Which is the most important thing to get lubricated at startup. that is why most newer cars are using 5w30 or 5w20 oil. Some even use 0w20 oil now. It is really about a 2 weight but they round every number to the nearest 5 up or down.

Oil Viscosity?

Oct 29, 2007 by HeNz | Posted in Maintenance & Repairs

Whats a good Oil Viscosity for Cairo Weather ??
Cairo Weather -> http://www.google.com/search?q=cairo+wea ther&rls=com.microsoft:en-us&ie= UTF-8&oe=UTF-8&startIndex=&s tartPage=1

The car is Skoda Octavia Tour 1.6 mpi
the manual just recommends Shell Helix.

the correct answer in in your owners manual, what oil is recommended by the manufacturer..

What oil viscosity to use on a 99 Audi A4?

Dec 12, 2009 by Alex | Posted in Audi

I just bought the car, I want to change the oil on it but I don't know what viscosity to use. Someone told me that it didn't matter but it had to be synthetic & someone else told me that it had to be 20W-50, they didn't say anything about synthetic. I need to change it asap, any help is greatly appreciated, thank you.
Its a 99' Audi A4 1.8T, 2WD, Automatic.

5w30 any oil

AMSOIL: Understanding Oil Viscosity Ratings

What's the difference between a 10w-30 and an SAE 30 motor oil? Dan Watson, AMSOIL dealer, looks at how motor oil viscosity ratings are ...

change oil viscosity ??? - Kawasaki Forums

by 407guy

I spent about 1000.00 in oil analysis on several bikes and cars (the KLX was NOT one of them), and off-road thumpers are generally very hard on oil. I'd run several of my cars 15000 miles before changing them (backed up by Used Oil Analysis), but, not so on these bikes. Honda Goldwing? Sure, it may be able to go nearly 10,000 miles between changes, depending on the conditions. I have used both 10w-40 and 20w-50 oil before. I prefer the 10w-40 weight oil for being easier to start with and still providing the thickness for high heat. The temps around my area in the summer may reach over 100*F, and the KLX runs fine with the 10w-40 oil. Now, if race or off-road most of the time, then the 20w-50 will be the better choice against thermal breakdown. But for street cruising and the occusional off-roading, the 10w-40 works best. Ever since Castrol won a lawsuit against Mobil 1, the term "synthetic" means very little...it's now a marketing term, not a scientific term. MOST synthetics (funny that this now includes some Mobil 1 products) are actually just severely hydrocracked Group III mineral oils. The performance benefits of thes Group III oils are ALMOST as good as anything made in a laboratory, at MUCH, MUCH lower cost. It won't hurt anything to run "synthetics" (again, because MOST of them aren't REALLY synthetic), but, you stand to gain perhaps no real benefit from them. Modern, true synthetics don't have the seal swelling problems of old, and you surely aren't going to hurt your engine...the only thing that's really important is to not try to extend oil change intervals too much with synthetics in a carburated, wet-clutch, shared sump thumper. That's a reason to use Rotella 15w-40. Then again, the KLX doesn't hold a big volume, so, it's not really expensive if you choose to use a synthetic and still change it often. We ride at 110+ F here in the desert...it makes sense to use a 50 weight, or, something close to a 50 weight, such as Rotella....

Read more...