Engine oil question

FricFrac · 08-17-2009, 11:45 PM

Quote:

Originally Posted by leepeen

My friend just bought some engine oils at the walmart store with decent price but he wanted to sell one of them to me since he bought too many oils for himself.

Do i need to stick to 5w30 as manual recommended? IMO, our vq3.7 engine needs higher viscosity engine oil than 5w30, in order to maintain high temp oil... Am i right?

1.castrol 5w50 4.4L (he want $30)

2.redline 5w30 4.4L (he want $40)

3.Amsoil 10w30 4.7L (he want $45)

btw, it's canadian dollar.

choose one for me plz...

You can buy Redline and Amsoil at Walmart?

NeedforZ · 08-17-2009, 11:57 PM

+1 for Redline

Cjanik · 08-18-2009, 12:38 AM

Quote:

Originally Posted by FricFrac

You can buy Redline and Amsoil at Walmart?

that'd be cool, mine doesn't have it

ConchZ2 · 08-18-2009, 07:16 AM

I use Pennzoil Platinum Full Synthetic 5-30 and find it runs cooler and quiets the valve train.
You can purchase it @ Wal-Mart for $20 and with a $15 mail in coupon, it’s only $1 a quart.
I change my oil every 3K to 4K depending on my driving. You can stockpile by giving different names & addresses for the rebate (use cash).

http://www.pennzoil.com/documents/04...ine%20form.pdf

alvinmathew88 · 08-19-2009, 09:59 PM

Quote:

Originally Posted by ConchZ2

I use Pennzoil Platinum Full Synthetic 5-30 and find it runs cooler and quiets the valve train.
You can purchase it @ Wal-Mart for $20 and with a $15 mail in coupon, it’s only $1 a quart.
I change my oil every 3K to 4K depending on my driving. You can stockpile by giving different names & addresses for the rebate (use cash).

http://www.pennzoil.com/documents/04...ine%20form.pdf

How would you get it if you used different addresses?

davidyan · 08-20-2009, 12:07 AM

Use a 5w30 for normal and even moderately spirited driving. The thicker oil weight is probably only good for all-day track racing and would be too thick for the close clearance engine. Either of the brands would be ok but Redline has the highest group rating and contains Ester as recommended by the owners manual if that's something you're interested in.

kannibul · 08-20-2009, 07:51 AM

Quote:

Originally Posted by davidyan

Use a 5w30 for normal and even moderately spirited driving. The thicker oil weight is probably only good for all-day track racing and would be too thick for the close clearance engine. Either of the brands would be ok but Redline has the highest group rating and contains Ester as recommended by the owners manual if that's something you're interested in.

Does a higher group rating mean it's better?

No...

Some Group III oils outperform or parallel Group IV oils, for example.

VCuomo · 08-20-2009, 03:15 PM

Quote:

Originally Posted by davidyan

Use a 5w30 for normal and even moderately spirited driving. The thicker oil weight is probably only good for all-day track racing and would be too thick for the close clearance engine. Either of the brands would be ok but Redline has the highest group rating and contains Ester as recommended by the owners manual if that's something you're interested in.

So does Amsoil - here is a snippet from a paper on group ratings that has been quoted a number of times in this forum (emphasis added):

Quote:

The oils that are commonly mentioned are Group II and Group III synthetics with the exception of Royal Purple, which is a Group V. AMSOIL is a Group IV synthetic (PAO) but also uses Group V Ester technology. It gives you the best of Group IV and Group V synthetics. Mobil 1 is a Group III synthetic. AMSOIL is a Group IV synthetic.

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08-17-2009, 11:57 PM	#2 (permalink)
NeedforZ Base Member Join Date: Mar 2009 Location: DFW Texas Posts: 163 Drives: 370z Touring 7AT Rep Power: 17	+1 for Redline

08-18-2009, 07:16 AM	#4 (permalink)
ConchZ2 Enthusiast Member Join Date: Feb 2009 Location: connecticut Posts: 329 Drives: 09 370Z red 6sp sprt Rep Power: 17	I use Pennzoil Platinum Full Synthetic 5-30 and find it runs cooler and quiets the valve train. You can purchase it @ Wal-Mart for $20 and with a $15 mail in coupon, it’s only $1 a quart. I change my oil every 3K to 4K depending on my driving. You can stockpile by giving different names & addresses for the rebate (use cash). http://www.pennzoil.com/documents/04...ine%20form.pdf

08-20-2009, 12:07 AM	#6 (permalink)
davidyan Base Member Join Date: Jun 2009 Location: CA Posts: 244 Drives: PG 370Z Sport 6MT Rep Power: 16	Use a 5w30 for normal and even moderately spirited driving. The thicker oil weight is probably only good for all-day track racing and would be too thick for the close clearance engine. Either of the brands would be ok but Redline has the highest group rating and contains Ester as recommended by the owners manual if that's something you're interested in.