I know all about the debate if it's going to be phased out possibly etc and not available in 1 gallon containers anymore just 5 gallons but my question is..
"Meguiars All Purpose Cleaner Plus D103 is an old favorite of many Meguiars fans.
It’s as versatile and effective as All Purpose Cleaner, but APC+ has a pleasantorange scent."
Based on the above:
I judge APC+to not be: D-limonene based.
You may judge differently.