{"id":19,"date":"2023-02-01T09:00:07","date_gmt":"2023-02-01T09:00:07","guid":{"rendered":"https:\/\/wordpressthemes.live\/WCG1\/WCM13_megashop\/demo2\/?p=19"},"modified":"2024-07-03T06:41:37","modified_gmt":"2024-07-03T06:41:37","slug":"sae-viscosity-grades-for-engine-oils","status":"publish","type":"post","link":"https:\/\/servomotoroil.com\/?p=19","title":{"rendered":"SAE Viscosity Grades for Engine Oils"},"content":{"rendered":"

Source: all about Motor Oil – web http:\/\/motorcycleinfo.calsci.com\/Oils1.html
\nSource, Understanding the SAE Motor Oil Viscosity Standard – www.ideas4ag-ed.corn
\nNote: Straight Weights eg 10 20 30 40 50 60 are different than W grades eg 5W 10VV 20W
\nSAE Viscosity Grades for Engine Oils<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\nthe following tests are run in a viscosity measuring bath type apparatus – we have this – as per ASTM – D445 – vertical flow<\/td>\ncP = centipoise – mPa.s = milli Pascal-second – measured by Rheometer<\/td>\n<\/tr>\n
Grade<\/td>\nKinematic viscosity (cSt) Low Shear Rate at 1000C<\/td>\nDynamic Viscosity (mPa.$) High Shear Rate at 150C<\/td>\n<\/tr>\n
20<\/td>\nFrom 5.6 To 9.3 cST at 100c<\/td>\n2.6 cP at 150c<\/td>\n<\/tr>\n
30<\/td>\nFrom 9.3 To 12.5 cST at 100c<\/td>\n2.9 cP at 150c<\/td>\n<\/tr>\n
40a<\/td>\nFrom 12 5 To 16.3 cST at 100c<\/td>\n2.9 cP at 150c<\/td>\n<\/tr>\n
40b<\/td>\nFrom 12.5 To 16.3 cST at 100c<\/td>\n3.7 cP at 150c<\/td>\n<\/tr>\n
50<\/td>\nFrom 163 To 219 cST at 100c<\/td>\n3.7 cP at 150c<\/td>\n<\/tr>\n
60<\/td>\nFrom 21 9 To 261 cST at 100c<\/td>\n37 cP at 150c<\/td>\n<\/tr>\n
A<\/td>\nOw-40. 5w-40, 10w-40 grades<\/td>\n<\/td>\n<\/tr>\n
B<\/td>\n15w-40, 20w-40, 25w-40, 40 grades<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
*<\/td>\nWinter Grades are designated by W after the number \u2013 eg 20W<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The following tests are run in a special test apparatus called \u2013 cold cranking simulator (CCS)<\/p>\n

SAE J300 (1999) Motor Oil Grades – Low Temp. Specifications<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
Dynamic Viscosity (mPa.s)<\/strong><\/td>\n<\/tr>\n
Grade<\/strong><\/td>\nCranking<\/strong><\/td>\nCranking Maximum<\/strong><\/td>\nPumping Maximum<\/strong><\/td>\n<\/tr>\n
0W<\/td>\n3,250cP at -30c<\/td>\n6.200 at -35c<\/td>\n60,000cP at -40c<\/td>\n<\/tr>\n
5W<\/td>\n3,5000P at -25c<\/td>\n6,600 at -30c<\/td>\n60.000cP at -35c<\/td>\n<\/tr>\n
10W<\/td>\n3,500cP at -20c<\/td>\n700001 -25c<\/td>\n60.000cP at -30c<\/td>\n<\/tr>\n
15W<\/td>\n3,500cP at -15c<\/td>\n7,000 at -200<\/td>\n60,000cP at -25c<\/td>\n<\/tr>\n
20W<\/td>\n4.500cP at -10c<\/td>\n9,500 at -15c<\/td>\n60,000cP at -20c<\/td>\n<\/tr>\n
25W<\/td>\n6,000cP at -Sc<\/td>\n13,000 at -10c<\/td>\n60 000P at -15c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Oldest Specs. – SAE J300 (1911 ca.) Motor Oil Specifications<\/p>\n\n\n\n\n\n\n\n\n
SAE Grade<\/strong><\/td>\nFlow Rate at 100 C<\/strong><\/td>\nNotes:<\/strong><\/td>\n<\/tr>\n
10<\/td>\n0=14 Seconds<\/td>\nSAE started grading motor oil in 1911<\/td>\n<\/tr>\n
20<\/td>\n15 To 24 Seconds<\/td>\nmovement of different layers of fluid were<\/td>\n<\/tr>\n
30<\/td>\n25 to 34 Seconds<\/td>\nmeasured when subjected to a horizontal<\/td>\n<\/tr>\n
40<\/td>\n35 to 44 Seconds<\/td>\nforce – 5 grades were identified<\/td>\n<\/tr>\n
50<\/td>\n‘=45 Seconds<\/td>\nSAE 60 was added later to the list<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Source: all about Motor Oil – web http:\/\/motorcycleinfo.calsci.com\/Oils1.html Source, Understanding the SAE Motor Oil Viscosity Standard – www.ideas4ag-ed.corn Note: Straight Weights eg 10 20 30 40 50 60 are different than W grades eg 5W 10VV 20W SAE Viscosity Grades for Engine Oils the following tests are run in a viscosity measuring bath type apparatus…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bst_post_transparent":"default","_bst_post_title":"default","_bst_post_layout":"default","_bst_post_sidebar_id":"","_bst_post_content_style":"default","_bst_post_vertical_padding":"default","_bst_post_feature":"","_bst_post_feature_position":"","_bst_post_header":false,"_bst_post_footer":false,"footnotes":""},"categories":[484,483,481,482],"tags":[486,495,493,494],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-engine-oil","category-grades","category-sae","category-viscosity","tag-engine-oil","tag-grades","tag-sae","tag-viscosity"],"_links":{"self":[{"href":"https:\/\/servomotoroil.com\/index.php?rest_route=\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/servomotoroil.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/servomotoroil.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/servomotoroil.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/servomotoroil.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19"}],"version-history":[{"count":0,"href":"https:\/\/servomotoroil.com\/index.php?rest_route=\/wp\/v2\/posts\/19\/revisions"}],"wp:attachment":[{"href":"https:\/\/servomotoroil.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/servomotoroil.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/servomotoroil.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}