What is the best synthetic oil?

WarmAndSCSI · 07-25-2010, 05:21 PM

Quote:

Originally Posted by Jordo!

That's an interesting idea -- I hadn't thought of that as an indicator of a completed break-in, but it makes sense.

I consumed pretty much exactly 1/2 a qt of oil during the first 3.75 K, assuming I don't see any oil consumption over the next 3.75, I should go to synthetic on my second oil change -- otherwise wait longer?

Yep, you were fine to go synthetic after that first 3750. I saw 1/3 quart consumption (maybe) over the first 2000 miles on our Z; we switched to the Castrol 0W-30 at 2100. I'll report back with a UOA and oil consumption report at roughly 6000 miles.

I do have to note, however, that the 0W-30 (which is indeed a thick oil) still gets us 30+ mpg on the highway. 33-34 mpg just cruising at 65 mph (speed limit here). Pretty impressive for such an engine.

Jordo! · 07-25-2010, 05:37 PM

Quote:

Originally Posted by WarmAndSCSI

Yep, you were fine to go synthetic after that first 3750. I saw 1/3 quart consumption (maybe) over the first 2000 miles on our Z; we switched to the Castrol 0W-30 at 2100. I'll report back with a UOA and oil consumption report at roughly 6000 miles.

I do have to note, however, that the 0W-30 (which is indeed a thick oil) still gets us 30+ mpg on the highway. 33-34 mpg just cruising at 65 mph (speed limit here). Pretty impressive for such an engine.

Cool -- very much looking forward to the oil analysis, as I am planning on switching to this oil next based on your recommendation --which, BTW, is consistent with the wear mean UOA data in the oil nerd's thread (it showed among the lowest wear!). Be interesting to compare your findings to those data as well.

tranceformer · 07-25-2010, 09:18 PM

Quote:

Originally Posted by WarmAndSCSI

Yep, you were fine to go synthetic after that first 3750. I saw 1/3 quart consumption (maybe) over the first 2000 miles on our Z; we switched to the Castrol 0W-30 at 2100. I'll report back with a UOA and oil consumption report at roughly 6000 miles.

I do have to note, however, that the 0W-30 (which is indeed a thick oil) still gets us 30+ mpg on the highway. 33-34 mpg just cruising at 65 mph (speed limit here). Pretty impressive for such an engine.

It is indeed a thick oil for a 30 weight oil. It was definitely heavier than the 5w30 castrol syntec I used before. The UOA looked good, I needed a thicker oil for the 90+ degree heat down here in south Florida.

and how the heck did you manage 30+ mpg??

Quote:

Originally Posted by Jordo!

Cool -- very much looking forward to the oil analysis, as I am planning on switching to this oil next based on your recommendation --which, BTW, is consistent with the wear mean UOA data in the oil nerd's thread (it showed among the lowest wear!). Be interesting to compare your findings to those data as well.

I'd recommend it as well. I'm on my second fill of that oil, I just got the UOA of the first fill. 4200 miles of 75% highway / 25% city and dozens of passes at the drag strip and it was looking pretty good.

WarmAndSCSI · 07-25-2010, 09:50 PM

Quote:

Originally Posted by tranceformer

It is indeed a thick oil for a 30 weight oil. It was definitely heavier than the 5w30 castrol syntec I used before. The UOA looked good, I needed a thicker oil for the 90+ degree heat down here in south Florida.

and how the heck did you manage 30+ mpg??

I'd recommend it as well. I'm on my second fill of that oil, I just got the UOA of the first fill. 4200 miles of 75% highway / 25% city and dozens of passes at the drag strip and it was looking pretty good.

It could be the altitude or the car might just be a factory freak. Computer reported 31.8 mpg average after a ~90 mile leisurely highway canyon trip the other day. That was also with about 10-15 city miles thrown in there. That and the low oil consumption both let me know this engine is healthy.

Awesome on the oil analysis - ours should be really clean since the Z really doesn't see that much action being my wife's car. I think I can be confident leaving it in for 5000-6000 miles based on your usage and UOA.

Z-Guy · 07-27-2010, 07:37 PM

If I live in Lakewood, WA which is located 45 minutes south of Seattle, would I be okay to run the 0w-30 Castrol Oil in my car? I' referring to the climate in my area. I did read the chart and the 0w-30 looked the best. Just curious what Nissan would say because they recommend the 5w-30. I just changed my oil at 1172 miles and I'm using the Ester Oil and the factory filter. Next oil change I will be using the PL 14610 and hopefully will have some good info on the oils. I'm liking the Castrol 0w-30 so far, just want to hear about the feed back.

LateralG'z · 07-27-2010, 07:39 PM

Royal Purple Only!!!!

WarmAndSCSI · 07-27-2010, 07:41 PM

Quote:

Originally Posted by Z-Guy

If I live in Lakewood, WA which is located 45 minutes south of Seattle, would I be okay to run the 0w-30 Castrol Oil in my car? I' referring to the climate in my area. I did read the chart and the 0w-30 looked the best. Just curious what Nissan would say because they recommend the 5w-30. I just changed my oil at 1172 miles and I'm using the Ester Oil and the factory filter. Next oil change I will be using the PL 14610 and hopefully will have some good info on the oils. I'm liking the Castrol 0w-30 so far, just want to hear about the feed back.

You'll be fine. It may be thick for a 30-weight, but it's not too thick to ensure proper operation of your valvetrain.

Quote:

Originally Posted by LateralG'z

Royal Purple Only!!!!

Overpriced junk.

LateralG'z · 07-27-2010, 07:58 PM

Royal Purple is the Best! nothing is better! you are confused

zZSoCalZz · 07-27-2010, 07:58 PM

FWIW... I went with the recommended Ester Oil for my first oil change @ 3400 miles. Was it worth the extra $$? Only time will tell. I rather be safe than sorry come 100K miles.

wishihadnav · 07-27-2010, 07:59 PM

wow is this thread still going?..haha

LateralG'z · 07-27-2010, 08:01 PM

Yes it is! Royal Purple!!!!!!

Red370 · 07-27-2010, 08:03 PM

Quote:

Originally Posted by LateralG'z

Yes it is! Royal Purple!!!!!!

wishihadnav · 07-27-2010, 08:04 PM

fine its royal purple.. /thread.

WarmAndSCSI · 07-27-2010, 08:06 PM

Quote:

Originally Posted by LateralG'z

Royal Purple is the Best! nothing is better! you are confused

Quote:

Originally Posted by LateralG'z

Yes it is! Royal Purple!!!!!!

Quote:

Originally Posted by Red370

Quote:

Originally Posted by wishihadnav

fine its royal purple.. /thread.

Eh, you're not wasting my money on an inferior oil, so whatever.

LateralG'z · 07-27-2010, 08:08 PM

Quote:

Originally Posted by WarmAndSCSI

Eh, you're not wasting my money on an inferior oil, so whatever.

Where are u getting facts that show Royal Purple is junk out of curiosity? Would like to see these facts please post the link

07-27-2010, 07:39 PM	#66 (permalink)
LateralG'z Track Member Join Date: Nov 2009 Location: Oklahoma Posts: 876 Drives: 370z Rep Power: 17	Royal Purple Only!!!! __________________ 2010 Mag Black, 6MT,

07-27-2010, 07:58 PM	#68 (permalink)
LateralG'z Track Member Join Date: Nov 2009 Location: Oklahoma Posts: 876 Drives: 370z Rep Power: 17	Royal Purple is the Best! nothing is better! you are confused __________________ 2010 Mag Black, 6MT,

07-27-2010, 07:58 PM	#69 (permalink)
zZSoCalZz Base Member Join Date: May 2010 Location: Los Angeles Posts: 176 Drives: in traffic! Rep Power: 15	FWIW... I went with the recommended Ester Oil for my first oil change @ 3400 miles. Was it worth the extra $$? Only time will tell. I rather be safe than sorry come 100K miles. __________________ 2009 MB: Stillen G3 Intake // Customized illuminated kickplates frost blue Z //

07-27-2010, 08:01 PM	#71 (permalink)
LateralG'z Track Member Join Date: Nov 2009 Location: Oklahoma Posts: 876 Drives: 370z Rep Power: 17	Yes it is! Royal Purple!!!!!! __________________ 2010 Mag Black, 6MT,

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07-27-2010, 07:37 PM	#65 (permalink)
Z-Guy Base Member Join Date: Jun 2010 Location: Lakewood Posts: 27 Drives: 10 370Z Platinum M6 Rep Power: 15	If I live in Lakewood, WA which is located 45 minutes south of Seattle, would I be okay to run the 0w-30 Castrol Oil in my car? I' referring to the climate in my area. I did read the chart and the 0w-30 looked the best. Just curious what Nissan would say because they recommend the 5w-30. I just changed my oil at 1172 miles and I'm using the Ester Oil and the factory filter. Next oil change I will be using the PL 14610 and hopefully will have some good info on the oils. I'm liking the Castrol 0w-30 so far, just want to hear about the feed back.

07-27-2010, 07:59 PM	#70 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 184	wow is this thread still going?..haha

07-27-2010, 08:04 PM	#73 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 184	fine its royal purple.. /thread.