Odchrist Report post Posted July 18, 2011 I just acquired. an Alpine coach 2005 with a Cummins 400 ISL. Does someone know the oil capacity? Thanks, Buzz Christensen Share this post Link to post Share on other sites
wolfe10 Report post Posted July 18, 2011 Buzz, Welcome to the FMCA Forum. Safest answer is to call Cummins tomorrow with your engine serial number. Better than hoping the correct answer for another person's engine is the same as yours. Cummins 800 343-7357 Share this post Link to post Share on other sites
Spike45 Report post Posted July 19, 2011 I just acquired. an Alpine coach 2005 with a Cummins 400 ISL. Does someone know the oil capacity? Thanks, Buzz Christensen Buzz, The ISL standard oil pan holds 7.3 gallons or 27.63 liters. Engine idle oil pressure is 15 psi. Warm engine at highway speeds carries 40 - 55 PSI oil pressure. Share this post Link to post Share on other sites
rorr1821 Report post Posted July 20, 2011 I also recommendation you call Cummins and provide them your engine serial number for an answer to your question. Also you may want to double check the answer with your Cummins engine owners manual. I have the ISL engine and have been told by Cummins these engine's come with different oil pan capacities. After you get the correct information from Cummins I would suggest on you next oil change you do a dip stick calibration check. It is not uncommon for dip sticks to read incorrect oil levels. You do not want to over fill the engine with oil! It is better to be at the fill mark on the dip stick than to be over the full mark. Share this post Link to post Share on other sites
rddavis@knology.net Report post Posted June 14, 2018 My 2006 Cummins ISL 400 has an oil capacity of 7 gallons. Share this post Link to post Share on other sites
wildebill308 Report post Posted June 14, 2018 Something to look at is go to Cummins Quick Serve and register your engine serial number. Now you have acess to the same information the dealer does about your engine. https://quickserve.cummins.com/info/index.html Bill Share this post Link to post Share on other sites
wildebill308 Report post Posted June 14, 2018 4 hours ago, rddavis@knology.net said: My 2006 Cummins ISL 400 has an oil capacity of 7 gallons. Welcome to the forum. Bill Share this post Link to post Share on other sites
manholt Report post Posted June 15, 2018 This post was last answered in 2011? It was 7.3 gallons then, so it also was in 2006! Share this post Link to post Share on other sites
wildebill308 Report post Posted June 15, 2018 Yes but the good member I replied to has only been a member 6 hours and as a reference for future readers I added Quick Serve. So your point is? Bill Share this post Link to post Share on other sites
manholt Report post Posted June 15, 2018 I'll give you a pass on the Quick Serve. Share this post Link to post Share on other sites
jleamont Report post Posted June 15, 2018 3 hours ago, manholt said: I'll give you a pass on the Quick Serve. Share this post Link to post Share on other sites
