Hello Guys! First post here so hopefully I’m doing this right! Serious oil consumption problem on my 2018 107 Heritage. I’ve had the bike 3 weeks now and have put about 400 miles on it. Took the bike in to dealership about 280 miles in because I was over a 1qt down on engine oil (Wasn’t even registering on dipstick). Topped off to almost “full hot” at approprapriate operating temp. Called dealer with my concerns and told me to bring it by. Dropped it off , had them “check” everything but all they did is say they checked for sumping/ fluid migration and no issues there. Told me to pick up the bike and come back for the 1k service since “no issues” were found. Rode the bike another 140 miles or so checked the dipstick and once again barley touching dipstick right at the “add quart line”. This time I personally pulled the left side spark plugs and both oil fouled. Especially the rear cylinder. Called dealer once again dropped off. Today they called me and said no issues found and come pick it up. At this point I’m a little annoyed and long story short I pretty much told the service writer I’m not picking it up until something is resolved. I have had to cancel 2 trips due to this issue. Guess I’m suppose to travel with a gallon of oil according to the dealer. Writer told to me to just ride it and don’t add oil to it until the 1k service. I said so I guess you want me to grenade the engine? “Uhh no I didn’t say that”. Well that’s whats gonna happen if I do that. Then tells me the engine only requires 1qt of oil to run properly. Wow 😂 I refused to pick the bike back up until something was resolved and now I’m waiting for what crap they have to tell me tomorrow. Anyone having issues like this? Very disappointed with this at the moment to say the least.

If it would stay at “add a qt mark” I wouldn’t be too concerned but it has gotten there twice already within 400 miles. You’d think it would be smoking like crazy but I haven’t visibily seen any. All I know is that my plugs were fouled pretty bad and I keep going through oil. No performance issues that I’ve noticed. I hope I get something resolved. Stuff like this tends to bother me, especially since I’ve only had it 3 weeks. I’ve owned a handful of bikes (this being my 2nd Harley) and have never come across an issue like this. I’ll keep you guys posted on what happens. Maybe a defect of sorts with the rings or valve guides is all I can think of. I just don’t want to be screwed around since there’s obviously an issue. I have 2 friends with M8’s and neither have had a consumption problem. Also I made sure to check levels at cold and at operating temp with same results. Thanks for any further information.

Read this thread: https://www.hdforums.com/forum/gener...cy-beware.html

Then demand your dealer do a compression test. As others gave said, some oil consumption in the first 1k is normal; yours is not.