tmw188 Posted August 24, 2021 Share Posted August 24, 2021 I’ve owned this coach about 3 mo now so I went on the Cummins App and entered my ESN with that stupid band across it. So is this where I should get accurate info on my engine? It says 20 qt for the high capacity oil pan. This should be the correct info I’m assuming. Someone wrote 5.5 gal on the valve cover. It reads about 5/8” high on the stick. I pulled 2 qts out and now it’s reading at the correct level on the stick, which does put me at the 20qt amount. I need this info to be reliable. Any comments. 350 8.3 ISC Link to comment Share on other sites More sharing options...
Robert U Posted August 24, 2021 Share Posted August 24, 2021 I have a 8.3 ISC 315hp that requires 22 quarts of oil. Dipstick is not accurate. Bob U 2000 Dip Link to comment Share on other sites More sharing options...
tmw188 Posted August 24, 2021 Author Share Posted August 24, 2021 (edited) I understand that could be the case, but if you read my post again it’s about the Cummins data on my motor says 20qts. It checks out with the dipstick. Edited August 24, 2021 by tmw188 Link to comment Share on other sites More sharing options...
Dr4Film Posted August 24, 2021 Share Posted August 24, 2021 I always have the service tech start with 20 quarts of oil first then top off if needed to bring it up to FULL on the stick. Plus they always install a full new oil filter. This is on my Cummins ISC-350 engine. Link to comment Share on other sites More sharing options...
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