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Engine Oil
I have been lurking NASIOC a bit lately, and I keep coming across Shell Rotella T6 5w40 as a recommendation. Any thoughts on whether it might be good in an EG33?
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project '97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod Now a mod "over there" ............Photo album |
#2
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Re: Engine Oil
http://motoroilbible.com/data-comparisons-combined.pdf
Are you after an oil that won't be too thick at lower temps (due to the tight engine passages) but will still hold up to Florida heat? If so, 5W40 might be a good idea. It looks like Redline is the best choice but it is probably much more expensive. However, with that HTHS number, I would feel comfortable going to a much longer OCI and especially if you go with the Bosch Premium oversized oil filter. If going with extended OCIs you might also want to switch to an AC Delco air filter which rated out as the best at filtration. That will help keep crap out of your engine. Redline, Amsoil and Mobil 1 are consistently rated the highest.
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Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
#3
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Re: Engine Oil
T6 5W40 here.
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Disclaimer: The above post is on the internet. |
#4
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Re: Engine Oil
Quote:
My 6-speed car sees high revs quite a bit, and sustained 3500+ revs on highway trips as well (doing 70-80). So I'd like to make sure it's good to handle that.
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project '97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod Now a mod "over there" ............Photo album |
#5
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Re: Engine Oil
Yes, Mr blueprinted motor. But should I use it in a stock motor with stock clearances?
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project '97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod Now a mod "over there" ............Photo album |
#6
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Re: Engine Oil
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I've been pondering the Rotella as well as I know the WRX and STI guys seem to love it. |
#7
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Re: Engine Oil
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The above, below, and behind are a little different, of course.
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Disclaimer: The above post is on the internet. |
#8
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Re: Engine Oil
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As far as Mobil 1 is concerned, it has always been a highly regarded oil. I have never heard a good reason as to why people think it is flawed other than correlation to an engine failure which does not equal causation. Now, it is true that all synthetics, M1 included used to be much thinner. For engines that need thicker oils, that could have been a problem. But that is in the past now and is no longer the case. I would choose M1 over Rotella but Rotella is a decent oil too. Rotella is made by SOPUS which does not have as god a reputation as XOM, in general. Ironically, my mechanic now carries both M1 and Rotella. He used to just carry Rotella but now offers both. Whatever way you go, 5W40 synthetic is probably a good idea in Florida. What is your OCI now? What oil filter and what air filter are you using? I can post an air filter study to support the change to AC Delco. If you go with a high efficiency air filter and oil filter along with an oil with high HTHS, you really should be able to extend your oil changes and offset that extra cost.
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Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
#9
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Re: Engine Oil
I use Shell Rotella in the blue jug $18.00 a gallon at Wally World ( if this is the same stuff you speak of ) in my motorcycle and it is far better than any other oil I have used . Since the trany and engine share the same oil , the bike shifts very smooth.
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#10
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Re: Engine Oil
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I think I'm going to give the rotella a try on the next oil change. The oil filter I've been using is a bigger (porsche 944) sized wix one. I have a bunch of them in a box and I've been changing them every oil change. The air filter is currently a K&N reusable one. I am waiting on a certain intake to be made, then I'll be switching to whatever cone filter comes with it. The AC Delco one, I'll use in my black car. Are they sold at autozone/advance? Perhaps under a different brand name?
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project '97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod Now a mod "over there" ............Photo album |
#11
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Re: Engine Oil
Quote:
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Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
#12
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Re: Engine Oil
They trap less air and also less dirt . You can't do both. Let in more air and not let in more dirt. I ran a 273 dodge Dart GT back in the day with no air cleaner . ( sounded mean when the 4 barrel kicked in ). BUT after only 60,000 miles I rebuilt the motor and when I went to push the pistons out the pistons flew out of the motor. The bore was bigger and the rings were shot . No compression.
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#13
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Re: Engine Oil
Quote:
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project '97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod Now a mod "over there" ............Photo album |
#14
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Re: Engine Oil
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Legitimate question: Have you ever found a quarter pound of dirt in your airbox?
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Disclaimer: The above post is on the internet. |
#15
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Re: Engine Oil
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On the subject of air flow, the restriction caused by a high quality filter like the AC Delco is insignificant compared to other sources of air restriction. Moving to a filter like the K&N makes little difference to HP so why even take the chance of letting more dirt into the engine? People have done an oil analysis after switching to the K&N as well as other filters like it and they found a spike in silica in the oil. It isn't worth the HP unless you are racing and every HP counts. And even then, I think most racing teams assume that there will be very little dust kicked up and into the engine during a race.
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Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
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