Saabman wrote:Ma gandesc sa pun ori MOTUL 8100 X-max 0W40 ori Redline 0W-40.
Ce ma sfatuiti?
Multumesc !
Salut
Nici nu stiam ca exista acest x-max
. Am facut o comparatie intre specificatiile x-max vs x-clean:
X Clean RECOMENDATIONS Viscosity grade SAE J 300 5W-40
Density at 20°C (68°F) ASTM D1298 0.845
Viscosity at 40°C (104°F) ASTM D445 84.7 mm²/s
Viscosity at 100°C (212°F) ASTM D445 14.1 mm²/s
Viscosity HTHS at 150°C ASTM D4741 3.6 mPa.s
Viscosity index ASTM D2270 172
Pour point ASTM D97 -39°C / -38.2°F
Flash point ASTM D92 234°C / 453.2°F
Sulfated ash ASTM D874 0.80% weight
TBN ASTM D2896 7.5 mg KOH/g
X Max RECOMMENDATIONSViscosity grade SAE J 300 0W-40
Density at 20°C (68°F) ASTM D1298 0.842
Viscosity at 40°C (104°F) ASTM D445 74.9 mm²/s
Viscosity at 100°C (212°F) ASTM D445 13.3 mm²/s
HTHS viscosity at 150°C ASTM D4741 3.58 mPa.s
Viscosity index ASTM D2270 182
Pour point ASTM D97 -45°C / -49°F
Flash point ASTM D92 222°C / 431.6°F
Sulfated ash ASTM D874 0.80% weight
TBN ASTM D2896 7.0 mg KOH/g
Nu stiu care e pretul pentru x-max, dar, daca e considerabil mai mare (intuiesc ca asa e, probabil e generatie mai noua), cred ca nu se prea justifica. Acel "0W" este cuantificat in -45 grade (pour point) vs -39 la x-clean. Cand vor fi, la noi, macar -30 grade
Flash point-ul e mai bun la x-clean, ceea ce (cred ca) inseamna un punct in plus, la noi mai degraba trebuie sa fie adecvat temperaturilor inalte. In rest, diferentele de scurgere la 40 si 100 de grade, desi par (relativ) mari, daca te gandesti ca se repartizeaza pe suprafata cilindrului, devin aproape nesemnificative. Cenusa de sulf, la fel... In concluzie, eu n-as da bani mai multi pe x-max, mai cu seama ca-s foarte multumit de x-clean.
Despre redline, nu ma pronunt, stiu doare ce-am citit pe-aici.
Succes in alegere!