I have been using PP 5w30 in 2 Lexus engines with great results. One has 150,000 miles and consumes 1/3 qt in 5000 miles. Both are on 5000 OCI's.
What oil for lexus is350?
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Run a good 5 or 0w20(ILSAC) as Toyota suggest. I personally cannot see a logical mreason not to.
What does driven hard mean ? beating the craaap out of the engine may be abusive but it is different than running WOT for 3 hours . I would better ask how hot does your oil get and what is the viscosity? If in your driving the oil pressure is fine then the viscosity is fine if you load the engine and the viscosity drops too much go up in viscosity. The mfg recommendations are good . The 20 wt seems to do real good remember todays oils are better than oils 15/20 years ago.
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Originally Posted By: BuickGN
And the same argument can be made for the 5-30 that's printed on the oil cap. A $45,000 307hp little V6 may have different needs than a 100hp Civic or Ford's 4.6L V8 that makes less hp than the Lexus with two extra cylinders to spread the load out.
True, but you are focusing on ONE version of the mod motor family; the 4.6L in the Vic. There's also the 300HP 3V in the Mustang, the 425HP version (5.4L) that was in the Cobra-R (rated at 385HP), the 320HP version in N/A Cobra's, the 390HP version in the supercharged '03/04 Cobra's....etc. And of course the 390HP N/A 5.4L used in the Aussie Falcon. No idea what they call for in that engine but I know MANY of the above engines are spec'd for a 20-weight. And I know countless people freak out about it being too thin and will run 10w30, 15w40, 20w50 and the like in them.
What does Honda call for in the S2000? It's a 200+HP 2.2L 4-banger, so it's making more power per cylinder than the Lexus in question.... How about an SRT-4? How about the LS1? LS3? or the engine in the ZL1 which is spec'd for 5w30? Lots of fun stuff to be considered.... And I really don't think there is an "answer"........
And the same argument can be made for the 5-30 that's printed on the oil cap. A $45,000 307hp little V6 may have different needs than a 100hp Civic or Ford's 4.6L V8 that makes less hp than the Lexus with two extra cylinders to spread the load out.
True, but you are focusing on ONE version of the mod motor family; the 4.6L in the Vic. There's also the 300HP 3V in the Mustang, the 425HP version (5.4L) that was in the Cobra-R (rated at 385HP), the 320HP version in N/A Cobra's, the 390HP version in the supercharged '03/04 Cobra's....etc. And of course the 390HP N/A 5.4L used in the Aussie Falcon. No idea what they call for in that engine but I know MANY of the above engines are spec'd for a 20-weight. And I know countless people freak out about it being too thin and will run 10w30, 15w40, 20w50 and the like in them.
What does Honda call for in the S2000? It's a 200+HP 2.2L 4-banger, so it's making more power per cylinder than the Lexus in question.... How about an SRT-4? How about the LS1? LS3? or the engine in the ZL1 which is spec'd for 5w30? Lots of fun stuff to be considered.... And I really don't think there is an "answer"........
Originally Posted By: OVERK1LL
Originally Posted By: BuickGN
And the same argument can be made for the 5-30 that's printed on the oil cap. A $45,000 307hp little V6 may have different needs than a 100hp Civic or Ford's 4.6L V8 that makes less hp than the Lexus with two extra cylinders to spread the load out.
True, but you are focusing on ONE version of the mod motor family; the 4.6L in the Vic. There's also the 300HP 3V in the Mustang, the 425HP version (5.4L) that was in the Cobra-R (rated at 385HP), the 320HP version in N/A Cobra's, the 390HP version in the supercharged '03/04 Cobra's....etc. And of course the 390HP N/A 5.4L used in the Aussie Falcon. No idea what they call for in that engine but I know MANY of the above engines are spec'd for a 20-weight. And I know countless people freak out about it being too thin and will run 10w30, 15w40, 20w50 and the like in them.
What does Honda call for in the S2000? It's a 200+HP 2.2L 4-banger, so it's making more power per cylinder than the Lexus in question.... How about an SRT-4? How about the LS1? LS3? or the engine in the ZL1 which is spec'd for 5w30? Lots of fun stuff to be considered.... And I really don't think there is an "answer"........
I completely see your point. I'm pretty sure the Civic Si and the S2000 require a 30wt. Also pretty sure that the blown 4.6 and 5.4 motors require a thicker oil but not positive. It's just hard to get over my actual teardowns with different viscosities and what I've seen with my own eyes.
Originally Posted By: BuickGN
And the same argument can be made for the 5-30 that's printed on the oil cap. A $45,000 307hp little V6 may have different needs than a 100hp Civic or Ford's 4.6L V8 that makes less hp than the Lexus with two extra cylinders to spread the load out.
True, but you are focusing on ONE version of the mod motor family; the 4.6L in the Vic. There's also the 300HP 3V in the Mustang, the 425HP version (5.4L) that was in the Cobra-R (rated at 385HP), the 320HP version in N/A Cobra's, the 390HP version in the supercharged '03/04 Cobra's....etc. And of course the 390HP N/A 5.4L used in the Aussie Falcon. No idea what they call for in that engine but I know MANY of the above engines are spec'd for a 20-weight. And I know countless people freak out about it being too thin and will run 10w30, 15w40, 20w50 and the like in them.
What does Honda call for in the S2000? It's a 200+HP 2.2L 4-banger, so it's making more power per cylinder than the Lexus in question.... How about an SRT-4? How about the LS1? LS3? or the engine in the ZL1 which is spec'd for 5w30? Lots of fun stuff to be considered.... And I really don't think there is an "answer"........
I completely see your point. I'm pretty sure the Civic Si and the S2000 require a 30wt. Also pretty sure that the blown 4.6 and 5.4 motors require a thicker oil but not positive. It's just hard to get over my actual teardowns with different viscosities and what I've seen with my own eyes.
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I THINK the Termi called for 5w30.........
And I agree with your point on tear-downs. Which is why I found it quite shocking when my cam grinder (Jay Allan) tore down his 302, that he was running on 0w20, and it showed VERY minimal wear.... Not bad for an engine spun to 8K with the stock oil pump........
And I agree with your point on tear-downs. Which is why I found it quite shocking when my cam grinder (Jay Allan) tore down his 302, that he was running on 0w20, and it showed VERY minimal wear.... Not bad for an engine spun to 8K with the stock oil pump........
I would think that a higher spinning, high hp motor would be a little more tolerant to thin oil than high torque low rpm motor. The Buick which made it's 600+lbs right around 3,000rpm has shown it hates thin oils. My theory is the only reason I didn't put something thicker in my torquelss wonder TL for the 110+ degree summers in Vegas and Phoenix.
Originally Posted By: OVERK1LL
What does Honda call for in the S2000? It's a 200+HP 2.2L 4-banger, so it's making more power per cylinder than the Lexus in question.... How about an SRT-4? How about the LS1? LS3? or the engine in the ZL1 which is spec'd for 5w30? Lots of fun stuff to be considered.... And I really don't think there is an "answer"........
Good point. I did some googling, and fuond a 2008 pdf of the owners manual for s2000.
It says (page 171):
Quote:
An oil with a viscosity of 10W-30 is preferred for optimum fuel economy and year-round protection in your vehicle. You may use 5W-40 oil if the temperature in your area goes below 0°F ( 20°C).
What does Honda call for in the S2000? It's a 200+HP 2.2L 4-banger, so it's making more power per cylinder than the Lexus in question.... How about an SRT-4? How about the LS1? LS3? or the engine in the ZL1 which is spec'd for 5w30? Lots of fun stuff to be considered.... And I really don't think there is an "answer"........
Good point. I did some googling, and fuond a 2008 pdf of the owners manual for s2000.
It says (page 171):
Quote:
An oil with a viscosity of 10W-30 is preferred for optimum fuel economy and year-round protection in your vehicle. You may use 5W-40 oil if the temperature in your area goes below 0°F ( 20°C).
Dino 10W30 is recommended for Honda S2000 since model year 2000. OCI is 7500 miles or 1 year which ever is first for normal driving condition, for severe conditions it is 3750 miles or 6 months. Synthetic can be used but OCI is the same as dino. Oil filter is changed at every oil change, and it has special larger oil filter not recommended for any other Honda.
The power was 240HP and revised down few HPs after model year 2005 with new power calculations. For MY 2000-2003 the engine size was 2 liters with redline at 9k, for MY 2004-current the engine size is 2.2 liters and redline at 8K.
I knew these facts because I have 2004 S2000.
The power was 240HP and revised down few HPs after model year 2005 with new power calculations. For MY 2000-2003 the engine size was 2 liters with redline at 9k, for MY 2004-current the engine size is 2.2 liters and redline at 8K.
I knew these facts because I have 2004 S2000.
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Originally Posted By: BuickGN
I would think that a higher spinning, high hp motor would be a little more tolerant to thin oil than high torque low rpm motor. The Buick which made it's 600+lbs right around 3,000rpm has shown it hates thin oils. My theory is the only reason I didn't put something thicker in my torquelss wonder TL for the 110+ degree summers in Vegas and Phoenix.
But it's oft RPM that kills a stock V8.... The rev limiter on these puppies was 6,250, and they didn't make power past 5,000RPM stock. So the stock bottom-end being spun to 8K on 0w20... And it holding up????? That was the surprise.
What kind of clearances are you running in the bottom-end of your GN? I know that an engine can be built for a specific oil thickness in mind... Loose engines require a heavier oil. I imagine with the power numbers you are making, and the use of the car, it was probably built on the loose side? Thus it probably wouldn't fare well on thin oil.... Which seems to echo your experience.
I would think that a higher spinning, high hp motor would be a little more tolerant to thin oil than high torque low rpm motor. The Buick which made it's 600+lbs right around 3,000rpm has shown it hates thin oils. My theory is the only reason I didn't put something thicker in my torquelss wonder TL for the 110+ degree summers in Vegas and Phoenix.
But it's oft RPM that kills a stock V8.... The rev limiter on these puppies was 6,250, and they didn't make power past 5,000RPM stock. So the stock bottom-end being spun to 8K on 0w20... And it holding up????? That was the surprise.
What kind of clearances are you running in the bottom-end of your GN? I know that an engine can be built for a specific oil thickness in mind... Loose engines require a heavier oil. I imagine with the power numbers you are making, and the use of the car, it was probably built on the loose side? Thus it probably wouldn't fare well on thin oil.... Which seems to echo your experience.
Originally Posted By: OVERK1LL
Originally Posted By: BuickGN
I would think that a higher spinning, high hp motor would be a little more tolerant to thin oil than high torque low rpm motor. The Buick which made it's 600+lbs right around 3,000rpm has shown it hates thin oils. My theory is the only reason I didn't put something thicker in my torquelss wonder TL for the 110+ degree summers in Vegas and Phoenix.
But it's oft RPM that kills a stock V8.... The rev limiter on these puppies was 6,250, and they didn't make power past 5,000RPM stock. So the stock bottom-end being spun to 8K on 0w20... And it holding up????? That was the surprise.
What kind of clearances are you running in the bottom-end of your GN? I know that an engine can be built for a specific oil thickness in mind... Loose engines require a heavier oil. I imagine with the power numbers you are making, and the use of the car, it was probably built on the loose side? Thus it probably wouldn't fare well on thin oil.... Which seems to echo your experience.
Not really loose. .0015 on the rods, .0018 on the mains, .004 piston to cylinder for the JEs. With the exception of the pistons, all stock cast 2-bolt bottom which seems to move around a bit under lots of power. I'm also spinning mine about 1,000rpm over the stock 5,250 limiter. I honestly can't remember the stock specs to compare it to. I do know, however, that oil pressure is nearly double the stock spec with only a stock clearanced pump. I don't like that going down the freeway I'm near the 70psi relief but when I've run a lighter weight, I've had much more wear on the teardowns but no outright failures.
That is impressive though, a stock bottom 5.0 spinning that kind of rpm reliably. I had no idea it was a stock bottom car.
Originally Posted By: BuickGN
I would think that a higher spinning, high hp motor would be a little more tolerant to thin oil than high torque low rpm motor. The Buick which made it's 600+lbs right around 3,000rpm has shown it hates thin oils. My theory is the only reason I didn't put something thicker in my torquelss wonder TL for the 110+ degree summers in Vegas and Phoenix.
But it's oft RPM that kills a stock V8.... The rev limiter on these puppies was 6,250, and they didn't make power past 5,000RPM stock. So the stock bottom-end being spun to 8K on 0w20... And it holding up????? That was the surprise.
What kind of clearances are you running in the bottom-end of your GN? I know that an engine can be built for a specific oil thickness in mind... Loose engines require a heavier oil. I imagine with the power numbers you are making, and the use of the car, it was probably built on the loose side? Thus it probably wouldn't fare well on thin oil.... Which seems to echo your experience.
Not really loose. .0015 on the rods, .0018 on the mains, .004 piston to cylinder for the JEs. With the exception of the pistons, all stock cast 2-bolt bottom which seems to move around a bit under lots of power. I'm also spinning mine about 1,000rpm over the stock 5,250 limiter. I honestly can't remember the stock specs to compare it to. I do know, however, that oil pressure is nearly double the stock spec with only a stock clearanced pump. I don't like that going down the freeway I'm near the 70psi relief but when I've run a lighter weight, I've had much more wear on the teardowns but no outright failures.
That is impressive though, a stock bottom 5.0 spinning that kind of rpm reliably. I had no idea it was a stock bottom car.
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Yeah, freaked out a lot of people to hear it actually
Car went bottom 11's (11.19) in that trim, N/A, full-weight. Was a very impressive setup. [censored]-loads of gear (4.56's) as well.....
Car went bottom 11's (11.19) in that trim, N/A, full-weight. Was a very impressive setup. [censored]-loads of gear (4.56's) as well.....
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Originally Posted By: Ram01
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Why did you just revive a thread from 2008?
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Why did you just revive a thread from 2008?
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