Hello. I have a 2018 Impala Premier with the V6. Could someone explain the marks on the dipstick for me? The owner's manual only shows the 4 cylinder one, saying the V6 is similar, but doesn't explain the marks. Thanks!
I have a 2014 Impala 2LTZ with the 3.6 V-6 engine.
I looked online at the 2018 Impala owner’s manual, and although the manual does show a picture of the 4-cylinder dip stick end - and states the V-6 is similar, it has specific information concerning oil level and usage for all engines in the Impala.
The information includes how to check the oil level, how long to have the engine off before checking, when to add oil, and warnings concerning overfilling the oil. It also contains information on the oil specification usage.
Perhaps you could re read your manual to clarify the answers to your question. In brief, the lowest crosshatch marking on the oil dipstick is the “low” level (requiring oil to be added) and the highest crosshatch marking is the “full” level indicator.
For about the first 30,000 miles - my Impala would use about one-half quart of oil after about 2,500 - 3,000 miles of driving. I would check the oil level as indicated, and it would show about halfway between the full and add marks. I would add one-half quart of oil, not wanting to wait until the oil level dropped one quart. I have changed (or had changed) the oil and filter when the oil life monitor reaches 30% - 35%.
Now, with about 42,xxx miles on the engine, it no longer uses one-half quart of oil between oil changes. I’m not sure why. I still check the engine oil on my vehicles every week or so at home, while the engine is cool.