Help me fine tune my OCI's

[Vspec]

Car: 2003 Nissan Sentra SER Spec-V
Engine: QR25DE
Miles: 37892
Current Crankcase Oil: Redline 10w30

Additional Notes: Dual Auto-RXed at 25,000 miles double cleaned.

Driving Conditions: Mostly highway at 65-80 mph between 2500-4000 RPM. For 40 minutes or more.

Octane: Sunoco Grade Ultra 94
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So check it Im coming up on 40,000 miles and plan to auto-RX my engine again. Im going to switch back to a conventional HDEO for the rinse and clean on both cycles. I need a recomendation for a really really good HDEO conventional oil and help choosing a good synthetic afterwards.

I've always been a fan of Redline but they dont carry that at Advanced anymore and im not special ordering Oil offline or driving 2 hours to the next distributor.

I'd like a group 5 Synthetic oil, thats really good on anti-wear, detergency, and is performance oriented (IE: Holds up well)

So without a analysis can anyone help me determine whats best with what i've told you?

 

[Vspec]

BTW: after the auto-rx whatever Synthetic oil I settle on will be added in with Specialty Formulations SX-UP.

 

[Terry]

Skip the SX-UP, eat the whole enchileada and get Mola to release that PCMO he is cooking up !

 

[Vspec]

Terry, can you suggest a few good Conventional HDEO oils, and possibly some high-end Synthetics like I was describing?

 

[drive it forever]

I ran Mobil1 0w40 @ a 4k OCI in my 02'specv once and had a good UOA. When I used to go to the very immature specv/sentra websites, it seemed like the QR25DE engine is a loser in the longevity department.

 

[drive it forever]

I dont use synthetic in my specv anymore because it burns about 1.5-2 quarts in 4k miles. My car has always had a header since engine #2 (no pre-cat).

 

[Vspec]

I still belong to B15sentra.net. Use RX it solved other QR problems with oil burning.
Mine has never burned.

 

[pajim17057]

If you want to stay with off the shelf synthetic. Then I would use regular Mobil 1 for under 5000 mile chenges. Mobil 1 EP for longer OCI.

 

[Cutehumor]

quote:

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Originally posted by drive it forever:
I dont use synthetic in my specv anymore because it burns about 1.5-2 quarts in 4k miles. My car has always had a header since engine #2 (no pre-cat).

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my dad's 03 sentra 1.8 L doesn't burn a drop of oil, but leaked a ton of coolant. after headgasket replacement, not a drop of oil loss.

 

[Pablo]

quote:

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Miles: 37892
Current Crankcase Oil: Redline 10w30

Additional Notes: Dual Auto-RXed at 25,000 miles double cleaned.

Driving Conditions: Mostly highway at 65-80 mph between 2500-4000 RPM. For 40 minutes or more.

Octane: Sunoco Grade Ultra 94
---
So check it Im coming up on 40,000 miles and plan to auto-RX my engine again. Im going to switch back to a conventional HDEO for the rinse and clean on both cycles. I need a recomendation for a really really good HDEO conventional oil and help choosing a good synthetic afterwards.

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All I can say is with THAT much cleaning and Redline - YOUR ENGINE MUST BE VERY CLEAN INSIDE!

 

[dwcopple]

you know that you are wasting money by running that sunoco fuel right???

 

[drive it forever]

quote:

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Originally posted by dwcopple:
you know that you are wasting money by running that sunoco fuel right???

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The owners manual says to use premium unleaded gas of 91 octane or higher for the specv. Theres also a premium unleaded recommeded sticker on the fuel filler door. The 94 sunoco makes my car run with very good part throttle responce in normal driving over any other fuel, but doesnt give it more power when the car is floored imo, even with using a lessor 89 octane. The funny thing is that the same engine in the altima with the same HP rating doesnt say you have to use premium. ????????

 

[reyjay1]

quote:

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Originally posted by Vspec:
Car: 2003 Nissan Sentra SER Spec-V
Engine: QR25DE
Miles: 37892
Current Crankcase Oil: Redline 10w30

Additional Notes: Dual Auto-RXed at 25,000 miles double cleaned.

Driving Conditions: Mostly highway at 65-80 mph between 2500-4000 RPM. For 40 minutes or more.

Octane: Sunoco Grade Ultra 94
---
So check it Im coming up on 40,000 miles and plan to auto-RX my engine again.

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One has to wonder why?

 

[williar]

GC should be the ticket. One of the best Xw30 oils in the USA. I think another Rx treatment is unnecessary as you've always been running syn.