in the current of machinerylubrication,
http://media.noria.com/ml/
there's an article about natural gas engine lubrication. It states that at oil temps of 175F and below nitration occurs. And at oil temps of 190F and above oxidation starts to happen. This is for a piston engine fueled by natural gas. My question though is, are those nitration/oxidation temps relatively the same for gasoline burning engines? And if so, then would the optimum operating oil temp be around 180-190F? I ask because, on my LS1 with a 160F thermostat and a digital oil temp gauge, I've been seeing temps in the 190-210F range the past two months on 10w-40 dino oil. That made me somewhat happy. It's gotten cooler recently and I noticed the oil temp took a lot longer to reach 190F. I put castrol 0w-30 in last week, and oil temps run the same- 190F range with it taking a while to reach that temp since it's been 50-70F ambient outside temp.
thoughts, comments?
fyi, during July and Aug with 80F+ weather running the 10w-40 (oil analysis coming soon too) and 160F thermo, it would hold at 190-200F range when on the highway, unlike the supertech 10w30 full syn which had run 220F on my 300 mile trip to upstate NY. But with the 10w40, it had no problem running 220F steady at 30mph or below or if I romped on it, and would climb to 250F easily if in stop&go traffic. It did however cool down easily, back to 200F, when cruising on the highway, which the 10w30 never did.
[ September 29, 2004, 10:58 PM: Message edited by: 1 FMF ]
http://media.noria.com/ml/
there's an article about natural gas engine lubrication. It states that at oil temps of 175F and below nitration occurs. And at oil temps of 190F and above oxidation starts to happen. This is for a piston engine fueled by natural gas. My question though is, are those nitration/oxidation temps relatively the same for gasoline burning engines? And if so, then would the optimum operating oil temp be around 180-190F? I ask because, on my LS1 with a 160F thermostat and a digital oil temp gauge, I've been seeing temps in the 190-210F range the past two months on 10w-40 dino oil. That made me somewhat happy. It's gotten cooler recently and I noticed the oil temp took a lot longer to reach 190F. I put castrol 0w-30 in last week, and oil temps run the same- 190F range with it taking a while to reach that temp since it's been 50-70F ambient outside temp.
thoughts, comments?
fyi, during July and Aug with 80F+ weather running the 10w-40 (oil analysis coming soon too) and 160F thermo, it would hold at 190-200F range when on the highway, unlike the supertech 10w30 full syn which had run 220F on my 300 mile trip to upstate NY. But with the 10w40, it had no problem running 220F steady at 30mph or below or if I romped on it, and would climb to 250F easily if in stop&go traffic. It did however cool down easily, back to 200F, when cruising on the highway, which the 10w30 never did.
[ September 29, 2004, 10:58 PM: Message edited by: 1 FMF ]