my engine is a toyota 1L 2.2 ltr, i think the engine is older than me...he he he...what do you guys think is better?a turbo aspirated diesel or a normally aspirated engine?because from what i know turbo engines are fuel efficient especially going uphill..is that true?because here in batangas there are alot of inclined highways..Sir mojo i believe my differential is a low speed because it is almost the same size as those on the 2.8 hilux surf..How about isuzu 4BC2?4HF1?