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Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4992375
01/27/19 12:33 PM
01/27/19 12:33 PM
Joined: Aug 2015
Posts: 3,276
NC
BigD1 Offline
BigD1  Offline

Joined: Aug 2015
Posts: 3,276
NC
What happened to the good slug of calcium in the PYB?

I was going to switch over to the PYB 10W-40 when it warmed up a little for my 22RE...not now.

Basically, they are charging more for less.

http://pqiadata.org/Pennzoil_10W40.html


1992 Toyota Pickup--Quaker State Advanced Durability 10W-30--Motorcraft 910S
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: BigD1] #4992384
01/27/19 12:44 PM
01/27/19 12:44 PM
Joined: Oct 2010
Posts: 5,474
Florida
Artem Offline OP
Artem  Offline OP

Joined: Oct 2010
Posts: 5,474
Florida
Who knows... maybe slight formula tweaks? Maybe Lab equipment variation? Maybe my RX-8 used up some calcium during the interval? Hahaha.


2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart. (thanks Advance Auto Parts for the awesome deal)
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4992394
01/27/19 12:57 PM
01/27/19 12:57 PM
Joined: Aug 2015
Posts: 3,276
NC
BigD1 Offline
BigD1  Offline

Joined: Aug 2015
Posts: 3,276
NC
400 PPM is not a lab variation. It's either just wrong, or indeed the calcium level has been lowered to the tier of a cheaper oil at a premium price.


1992 Toyota Pickup--Quaker State Advanced Durability 10W-30--Motorcraft 910S
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4993170
01/28/19 01:57 AM
01/28/19 01:57 AM
Joined: Jul 2005
Posts: 11,771
Maricopa Arizona
dave1251 Offline
dave1251  Offline

Joined: Jul 2005
Posts: 11,771
Maricopa Arizona
Originally Posted by Artem
Originally Posted by Pinoak

I thought there reason for not using synthetic is because the rotary engine is supposed to burn oil by design and synthetic dosent burn as well??
Anyway I had An Rx7 back In the day. Long before the 8 and it was just too problematic although it could beat the mustangs and Camaros all day long.



That is the reason. Synthetic is stronger and resists burning, so it’s not ideal as a 2 stroke oil that needs to burn off CLEANLY.

I’m sure this is 2005 talk and today’s SN spec oil are pretty much the same, regardless if it’s conventional or synthetic. I’d rather not experiment with my engine.



Not to mention today's blends are so close to synthetic it's almost a non issue.


make the inside of your engine oil cap white.
don't use.
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4993464
01/28/19 11:39 AM
01/28/19 11:39 AM
Joined: Jan 2018
Posts: 231
Central Texas
Brian553 Offline
Brian553  Offline

Joined: Jan 2018
Posts: 231
Central Texas
If your constraints are >3.5 HTHS of the blend, staying away from synthetic, and trying to get as much metallic FM additives, try Delvac XLE 10w30 (4qt)

I think I've said this in another one of your threads, but, is it best to have organometallic FM additives, or ashless organic FMs?

Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Brian553] #4993739
01/28/19 03:33 PM
01/28/19 03:33 PM
Joined: Apr 2016
Posts: 2,045
Oregon
1JZ_E46 Offline
1JZ_E46  Offline

Joined: Apr 2016
Posts: 2,045
Oregon
Originally Posted by Brian553
If your constraints are >3.5 HTHS of the blend, staying away from synthetic, and trying to get as much metallic FM additives, try Delvac XLE 10w30 (4qt)

I think I've said this in another one of your threads, but, is it best to have organometallic FM additives, or ashless organic FMs?


I believe you meant Delo XLE.


2019 Tesla Model 3 SR+
2016 Countryman S: Castrol 0W-40
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: 1JZ_E46] #4993750
01/28/19 03:50 PM
01/28/19 03:50 PM
Joined: Jan 2018
Posts: 231
Central Texas
Brian553 Offline
Brian553  Offline

Joined: Jan 2018
Posts: 231
Central Texas
Originally Posted by 1JZ_E46
Originally Posted by Brian553
If your constraints are >3.5 HTHS of the blend, staying away from synthetic, and trying to get as much metallic FM additives, try Delvac XLE 10w30 (4qt)

I think I've said this in another one of your threads, but, is it best to have organometallic FM additives, or ashless organic FMs?


I believe you meant Delo XLE.

whoops! yep

Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Brian553] #4993932
01/28/19 07:11 PM
01/28/19 07:11 PM
Joined: Apr 2016
Posts: 2,045
Oregon
1JZ_E46 Offline
1JZ_E46  Offline

Joined: Apr 2016
Posts: 2,045
Oregon
Originally Posted by Brian553
whoops! yep


smile


2019 Tesla Model 3 SR+
2016 Countryman S: Castrol 0W-40
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4999764
02/02/19 07:31 PM
02/02/19 07:31 PM
Joined: Feb 2015
Posts: 2,857
Slovenia EU
Kamele0N Offline
Kamele0N  Offline

Joined: Feb 2015
Posts: 2,857
Slovenia EU
I always tought that dino or semisyn is needed because of seals (that they are sensitive towards pure synthetic)...

If you want synthetic AND cleaner engine... Try with euro low saps oils...

Like ACEA C3 or even better C4 (both are HTHS 3.5+)

Or with any other OEM low saps spec. like vw-mb-bmw...


2008 Toyota Yaris 1ND-TV 1.4 D4-D Tech9 5W30 C3 VW 504/507
1997 Toyota Landcruiser KZJ95 3.0 TD Elf Evolution NF900 5W40
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