Mineral , semi synthetic or fully synthetic?

[Retz]

do turbo diesel need fully synthetic oil, or can i use mineral

wala kasi ako mabasa sa booklet ng 4m41 na "use fully synthetic oil only" and nag tanong ako sa mitsubishi marcos na ang nirerecomend daw nila eh fully synthetic dahil daw turbo diesel ang makina ko

CF-4 or CH-4 rated by API are designed for turbo charge diesel engine.

[miko101130]

buy the best oil with the best specifications( additive package/base oil)...

pag mineral kaya mostly 5000kms ang recommended change oil because it degrades very easily when used...
if you use semi synthetic you can extend it a little further provided you use a good filter...(not VIC)
if you use fully synthetic you can DEFINITELY extend your intervals...and extend it FURTHER with a good filter again...(not VIC)

the TRUE advantage of fully synthetics over semi and mineral oils is not the interval it can give but the edge in terms of
*shear protection (oil film strength)
*soot dispersion (can hold more particles in suspension)
*fuel economy (high viscosity, superb cold start protection)
*and resistance to oil oxidation due to the fact that they are synthetics (degradation)

[speedyfix]

mineral oil is fine if you're very religious with your intervals. if you'd like a bit more leeway with it then better to use full syn oil.