Welcome to the forum, careful it's addictive!
EDIT-: and as a rule of thumb, most conventional car/van/motorcycle engines made before about 1999-2000ish (highly tuned/specialist high power lumps aside) will happily run on 10w/40 mineral or semi-synthetic and in fact don't need or benefit from any of the latest super-duper hi tech fully synth lubes with this & that additive. Some will even be damaged by switching straight to a modern fully synth with all sorts of detergents as it can dissolve/dislodge residue that built up over the last 15-20 years of running on "normal" oil.
Like I say, just a rule of thumb really & not concrete. But by and large, if you have something built before 2000 & desperately need to top up the oil you will be fine using 10w/40 mineral or semi, at least until you can confirm what is recommended & usually you'll find the recommendation is just that. Very high mileage engines may benefit from a heavier oil like 20w/50 if they show low oil pressure or use more than you'd expect when fed on 10w/40
The only difference between 10w/40 & 10w/40 "Diesel" or "Turbo Diesel" specific oil is the amount of detergents/dispersants in the oil, some will even be just the same (apart from the price).