What oil viscosity for 4.7 ?
I have an '02 with the 4.7.
The manual states to use 5W-30 for ambients less than 100F and 10W-30 for 0F to above 100F. I used to tow our 4000lb boat/trailer with the D in the summer, so I began using 10W-30 all the time (synthetic). Do you think its ok to use the 10W-30 year round? or should I go to the 5W-30? Sometimes when I first start up the D, I can hear a ticking noise coming from the engine at idle, but it goes away as the engine warms up. Could this ticking be due to the 10W-30?? I have 95k miles... In winter, the ambients here might get down to 32F... otherwise its 35-40F all winter. Thanks, Louis |
5w-30 or 10w-30 isn't going to make a difference much in these engines, not enough to present a ticking noise. The 4.7's however are famous for making a ticking noise on a cold start for a little bit but like you said, goes away once engine starts getting warm.
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the ticking noise in the 4.7 is normal, if you dont see temperatures below 0F you should be fine with the 10w30 year round, its what i run year round without any problems
however for most people 5w30 is the best choice for the 4.7 as that is what dodge prefers in there. |
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