Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
The Terminator
Engine/Tuning
Mobil 0w-20
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Cobra'03" data-source="post: 516286" data-attributes="member: 3013"><p>It is the API standard oil viscosity classification. 5 represents the oil's base viscosity, and its vis at low temps - "W" inidcates that the oil acts like a 5 weight oil in the cold, or "winter". It really is linked to a specific temperature though. The 20 reprsents its performance, or resistance to thinning excessively, at higher temps. So a 20 weight means that it thins at a rate consistent with an oil of 20 weight. </p><p></p><p>Synoils usually do not have polymeric thickeners to have a useful vis range - multi-grade dino oils do - they really are 5 weight oils that have liquid plastics in the additives package that thicken as temps rise, so the oil does not really thin out when it is hot, as it would were it not fortified.</p></blockquote><p></p>
[QUOTE="Cobra'03, post: 516286, member: 3013"] It is the API standard oil viscosity classification. 5 represents the oil's base viscosity, and its vis at low temps - "W" inidcates that the oil acts like a 5 weight oil in the cold, or "winter". It really is linked to a specific temperature though. The 20 reprsents its performance, or resistance to thinning excessively, at higher temps. So a 20 weight means that it thins at a rate consistent with an oil of 20 weight. Synoils usually do not have polymeric thickeners to have a useful vis range - multi-grade dino oils do - they really are 5 weight oils that have liquid plastics in the additives package that thicken as temps rise, so the oil does not really thin out when it is hot, as it would were it not fortified. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Engine/Tuning
Mobil 0w-20
Top