conventional oil during break-in period?

[Neutr0n]

My Z has 89km. it's still early.. so i was wondering if i changed the OEM 0W20 to 5W30 conventional oil for the break-in period, would it help the process? ...or don't bother?

 

[FSUZ33]

I'm not sure if it's this way with Nissan or the Z specifically, but some manufacturers factory-fill with special oil high in moly and/or zinc specifically for break-in that should be left in for that duration...per the manufacturer.

If the Z has standard oil, my opinion is changing it to something slightly thicker, as long as it's full-synthetic, isn't going to change anything other than your bank account balance.

 

[Tranzor Z]

Well, engineers at Nissan say 0w-20. So that's what I'll stick with.

 

[haohmaru]

I left the factory oil in until 1200 miles then used Motul 0W-20. I had the oil analyzed too.

https://www.nissanzclub.com/forum/threads/5k-oil-analysis-report-updated-12-2-25-10k-report.6441/

 

[chadgigachad]

Well, engineers at Nissan say 0w-20. So that's what I'll stick with.

The oil weight discussion is heated, and will likely never end. Do your oil changes frequently and on-time and the motor will last a long time.

 

[haohmaru]

Well, engineers at Nissan say 0w-20. So that's what I'll stick with.

where did you see that?

 

[FSUZ33]

 

[haohmaru]

the owner’s manual isn’t exactly “what the engineers say”. Modern emission regulations effect it too.

Older manuals for cars with the VR30DDTT include 0W-30, 0W-40, 5W-30 and 5W-40 as factory recommendations for this motor.

 

[Neutr0n]

the owner’s manual isn’t exactly “what the engineers say”. Modern emission regulations effect it too.

Older manuals for cars with the VR30DDTT include 0W-30, 0W-40, 5W-30 and 5W-40 as factory recommendations for this motor.

EXACTLY thank you!
i've seen in multiple occasions where manufactures comes out with a bulletin to change to thicker oil. I have a chevy 1500 with the diesel and believe me, i've heard all about their 6.2l V8 fiasco. People just need to use science and logic and not blindly follow the "recommended". Yes i know, it will affect your warranty but even if you stick with what they tell you to do, they'll still find a way not to cover your warranty. besides, i'm sure many of you had voided by now lol

 

[Neutr0n]

Well, engineers at Nissan say 0w-20. So that's what I'll stick with.

and are you really gonna beleive them when they tell you it's 1 year/10 000km oil change intervals?

 

[trackratZ]

the owner’s manual isn’t exactly “what the engineers say”. Modern emission regulations effect it too.

Older manuals for cars with the VR30DDTT include 0W-30, 0W-40, 5W-30 and 5W-40 as factory recommendations for this motor.

It's all about meeting fuel economy targets while also covering all climate areas. Those of us in warmer climes would be fine with 0W-30 for all seasons, even 0W-40 in extreme conditions.

 

[haohmaru]

Here's a couple pages from the owners manual for a 2017 Q60 that included the temperature / oil weight range.

You'll notice 0W-20 wasn't even included. Long term, I don't trust 20 weight oil on this motor, I switched to 30 at 10k. When I do the next oil change at 15k, I'll have the oil tested.

 

[trackratZ]

I’ll keep on-going with analysis, worth the health checks over time. Long term will stick with 0W30 for all season, will switch temporarily to 0W40 for track days. Warmer climes here.

 

[haohmaru]

Also, 0W-20 isn't new, they developed it in 2002. Here's the first sentence from the SAE paper on it:

"A new 0W-20 gasoline engine oil was developed to improve fuel economy over ILSAC GF-2 5W-20 gasoline engine oils and to meet ILSAC GF-3 requirements."

https://www.sae.org/papers/development-0w-20-ilsac-gf-3-gasoline-engine-oil-2002-01-1636

I'm sure it's fine in my wifes Forester, but all the "modern" performance engines grenading on 20 weights and below is wake up call. Also, the fact that manufacturers only really started using it after regulations required it is a tell.