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FA20 Engine Expert Needed in Central NJ - Payment for Your Expertise
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Based on your previous thread, your engine failed because you lost lubrication, as a result of your oil over-thinning from excessive oil temperatures resulting from non-normal use.
Mobil 1 is not a quality oil. I've seen many engines fail from the lack of an oil cooler. |
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Are you implying that Mobil 1 oil breaks down at a lower temperature than some other oil brand of your preference? Or are you implying that Mobil 1 is not an effective lubricant? Is there a fault with the base stock, or additives? I've run Mobil 1 FS in my '13 for 30k+ miles and drive the crap out of it so please let me know what properties of the oil will cause my engine to explode and how to prevent it. |
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Define "driving the crap out of it", because any oil will be fine for extended WOT. It's sustained RPMs that are the issue. |
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I understand that high rpm is what causes oil temperature to rise. Without going into details, I'm seeing oil temperatures ( pulled from ecu) up around 230 something F. Interestingly enough, my car starts pulling timing when it gets up there but that's besides the point. I run my crappy econobox Hyundai at 4k rpm(I think redline is like 5 something) for 30 minutes at a time in top gear with only 3 quarts of Mobil 1 in it and it is still going strong at 85k miles. Again, I ask for evidence of your claim. |
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Sorry, but if you're seeing 230F without an oil cooler, you're hardly "driving the piss out of your car". You can get to 230F by sitting in 3rd gear on the highway for 45 seconds. Works for you =/= works for everyone. Any synthetic 0W20 is fine for casual use with this car. Tracking? Not so much. |
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That said, there is no restriction or even a negative recommendation on using it from Subaru/Toyota so the brand of oil used should have no impact on the OP's claim even if it was actually at fault. |
Fine, I'll ask, what would you recommend as an alternative to Mobil 1?
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To the OP, good luck with your case but it doesn't sound good for you.
I agree with CSG Mike, 230 degree oil temp is nothing really. I track my car in the Northeast which is relatively cool temperature wise. Hottest air temp day on the track has been 82 degrees. I routinely hit 270-280 oil temps before I have to back off for a few laps to cool it down a bit. (Oil cooler installation in process, $%^% 2017 air box). Aggressive driving to me is never letting the car dip below 4000rpm to keep it out of the power dip, and that is for 20-25 minute track sessions. Something you would never be able to do on the street. |
For clarification purposes, this engine is stock and had six oil changes over the course of 26,000 miles and four years of second car usage.
The engine failed THREE laps in on a 1.2 mile road course (1.2 is off memory, but it's short). RPMs were not sustained above 4,000 RPM during this time, as it was my first track time using a manual of any kind, so they were essentially practice laps learning the gear changes required for each turn. The check engine light never came on during or after and the coolant temperate was precisely in the middle. There was no coolant steam. It's my understanding both coolant and the properties of the engine oil work to cool any engine. If the coolant wasn't even elevated, how could the fresh oil exceed max temps and cause a failure within three total laps, which includes the slow-in half lap to the pits? I'm no expert, but this failure isn't passing the BS test for me. Finally, no one at Toyota corporate or the dealership said anything derogatory concerning the Mobil1 oil quality. Also, it was a cool day in early March if that helps any. Thanks for the replies so far, but I'm still looking for an expert to testify in what would likely be small claims court simply to limit my expenses exposure and recover partial value of the $5,300 quote for a replacement. |
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In for suggestions on oil better than Mobil 1 that doesn't break the bank for casual track/autox use, tired of paying ~$50 for an oil change on Eneos. Edit: but I'm willing to keep paying the 'big bucks' to keep my engine healthy for a long time. |
Does the dealership know you towed it from a road course?
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