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Well, I plugged "What is the ideal engine oil temperature?" into Google, and the first hit that came back has this in it: "The ideal operating range for engine oil
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Well, I plugged "What is the ideal engine oil temperature?" into Google, and the first hit that came back has this in it:
"The ideal operating range for engine oil is 180°F through 200°F. While operating within this range, the oil works as a lubricant, coolant, and cleansing agent in the engine. Modern engines generally run with radiator coolant temperatures between 200°F and 220°F with oil temperature ranges between 20°F and 75°F HOTTER. In other words, when the engine is performing flawlessly, the engine oil is already overheating! Oil that exceeds 220°F rapidly loses its ability to lubricate and cool causing accelerated fatigue and premature component failure." What an Oil Cooler Does Now, it looks like this page is on the site of a company that sells oil coolers, so I don't know how reliable the information is. I wouldn't stress out over temps going over 220°F if you're using a quality synthetic, for instance. But my point is that you can always Google the question if really want to know. And maybe a search at bobistheoilguy would yield some good answers as well.
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"There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf. Last edited by semtex; 03-26-2010 at 09:48 AM. |
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Many are claiming dangerously high (or at least problematic) oil temperatures under certain conditions. My question isn't what an ideal oil temperature is, because I feel under normal conditions (both driving and environmental conditions), most will find their Z operating well within the limits of "normal oil temperatures". My question is what do you expect our oil temperatures to be at, with the understanding there is no factory oil cooler, assuming you're tracking or sporty driving on a hot day? If the expectations of the 370z owners are that the car should be running at a perfect 190-200 degrees on a hot, track day without an oil cooler, I think the problem may be our expectations, not the engine.
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Thats the Million dollar question, What temp do we start to get worried about? Im seeing 220 right now in 65 degree weather with basically normal driving, for me any way. So when its 100 degrees outside what temps will I see? Im thinking 240+ and is that bad? I dont kow but I will put a small oil cooler on for peice of mind.
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So then I guess I would need to find out at what temp the type of oil I use starts to break down and lubricate as well.
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While each brand of oil should show some differences in exact temps, but from a couple quick searches, most conventional oils (which I assume includes Nissan Ester) starts to break down around 250°F and most synthetics appear to be rated up to around 290-300°F.
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But what complicates things is that article explaining that the problem for this car isn't that the oil gets so hot that it starts to break down; the problem (according to the author) is that in an effort to be more 'green', Nissan changed the type of metal they use in their bearings, and the new metal is less durable under high heat. The claim is that even if your oil is okay at, say, 280 degrees, the bearings aren't -- they'll start to degrade. You guys know which article I'm referring to? The one by Mike Kojima?
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I hope they are not using those clay bearings from the clay model they have sitting around.
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It's why I installed an oil cooler. I'll tell you guys right now that I never saw temps above 250 prior to installing the cooler. But the claim made in that article had me paranoid enough that I figured better safe than sorry. And on the cooler went.
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"There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf. |
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I won't link to the article itself because it's on a competing blog and it's against the rules, but I did just go find it and I'll quote the relevant passages here for you guys to read.
Quote:
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"There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf. |
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Oops. I missed a couple of additional paragraphs.
Quote:
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"There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf. |
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I agree with Semtex. I read that article awhile back and it really got me thinking about the oil temperatures in my car. To be honest I never see my oil temperature go above 220-230(but I haven't driven it hard in hotter weather yet). But, if I see temperatures substantially higher, but still not in limp mode. I may consider an oil cooler without being on the track just for the sake of ease of mind.
The biggest thing that makes no sense to me is. I'd say a VAST majority of members on this forum mod their cars. So why complain about an oil temperature problem with this car if an oil cooler is one of the cheapest mods that can be done to the car? Stop complaining and fix the problem. I'm sure the 350z had this same problem. But without an oil temperature gauge or limp mode ignorance is bliss. |
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