problem with oil

:banghead: i have a grand cherokee model 96' 4.0 please tell me the better oli for my engine because castrol died very soon(3500 km)

where i can buy a rear taillight for my jeep and to send at greece?

:banghead: i have a grand cherokee model 96' 4.0 please tell me the better oli for my engine because castrol died very soon(3500 km)
?
Castrol (spec API SG) should be OK for 5000km. How do you know it died?

because in greece where live the temperature is high

lhavelas

I would try a full synthetic like mobile1 or Amsoil if it is available there.

what is the characteristics of the oil that tell you it has "died"?

Question for my interest is -

How is the oil rated in your country. do they use the API system there?

JD

dear jdpascal

i put before 3500 km castrol performance 15/40 SAE and died very soon. i dont know API system what is this...

API is the northamerican system of rating oil for warrenty approval. they use two letters - the latest oil rating for gas engines is SL. the S indicates it is for gas engines (with spark ignition) and the L indicates the series of testing that it has undergone. the previous series was the SJ rating.

Your conditions there should be similar to the southern US and these oils work well there.

I'm still not sure how you could tell that the oil "died" from hot operating. did you have an oil analysis done at a lab?

JD

Isn't oil already dead? LOL

i said dead because after 3500 km i heard i noise from my engine. i put tomorrow shell oil 10/40 and it stop. i dont know if the oil from shell is good but next time i put mobil 1 as you tell me. when i said that in greece we have very hot days, now (7.50 a.m greece hour) the temperature is 40 oC

We have 45 oC in Turkmenistan.
The other thing: there is a lot different kind of Mobil 1 and Castrol as well. Need to pay attention to specifications on it.
BR,
Arkadiy