I'm going BACK to use 10w-30.
07-07-08, 09:09 PM
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I'm going BACK to use 10w-30.
5w-30 was too light and I found tiny metal flakes in the oil filter.
I used 5w-30 Mobil 1 Synthetic.
I changed it after 5K miles of FWY driving and noticed tiny metal flakes in my OEM oil filter.
odo at the time: 22K
I then changed to 10w-30 Mobil 1 Synthetic and the flakes are GONE.
Same driving + more A/C.
So no way worth worth the MPG gain by using 5w-30.
I'll see how the performance of using Mobile 1 Synthetic vs non-synthetic.
Non-synthetic is in there now. I'll probably do an early oil change b/c of this.
I used 5w-30 Mobil 1 Synthetic.
I changed it after 5K miles of FWY driving and noticed tiny metal flakes in my OEM oil filter.
odo at the time: 22K
I then changed to 10w-30 Mobil 1 Synthetic and the flakes are GONE.
Same driving + more A/C.
So no way worth worth the MPG gain by using 5w-30.
I'll see how the performance of using Mobile 1 Synthetic vs non-synthetic.
Non-synthetic is in there now. I'll probably do an early oil change b/c of this.
Last edited by ExKoukiS14; 07-07-08 at 09:18 PM.
07-07-08, 09:33 PM
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Who told you there was any savings from running 5w-30 over 10w-30? At operating temperature, they're both 30 weight. I run 5w-20 Mobil 1 and I've never seen flakes in my filter or had a bad oil analysis.
Did you do an analysis of the oil to determine what the flakes are? I'd be really worried about that. I've never seen flakes in anything I've owned ever.
BTW - it wasn't the oil's weight that caused the problem. You do realize the car came from Lexus with 5w-20 in it?
Did you do an analysis of the oil to determine what the flakes are? I'd be really worried about that. I've never seen flakes in anything I've owned ever.
BTW - it wasn't the oil's weight that caused the problem. You do realize the car came from Lexus with 5w-20 in it?
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