- Aug 23, 2022
Ok, so I have a 98 Four Winns Horizon with the 5.0GL engine. First off, I need to get myself back to the basics and ask how do I check the oil? Do I check it with the dipstick all the way in or do I put it down to where the waves start? The reason I’m asking this is because I went to change my oil and vacuumed out the oil with a manual pump until it started sucking air. Naturally, I assumed all the oil was out so I put in around 4 quarts, (plus I added around a quart in the filter) started the engine and let it run for 5 minutes or so to get everything cycled through. I turned the engine off and let it sit for about 30 minutes and checked it again. The oil was all the way up on the dipstick so I pumped all the oil out again until the pump started sucking air. I let it sit for another 30 minutes and it’s still reading about halfway up on the dipstick. What’s going on here? Is there something I’m not doing?