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Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4992375 01/27/19 11:33 AM
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BigD1 Offline
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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--AmazonBasics Conventional--10W-30--Toyota 90915YZZD1
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: BigD1] #4992384 01/27/19 11:44 AM
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Artem Offline OP
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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 11:57 AM
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BigD1 Offline
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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--AmazonBasics Conventional--10W-30--Toyota 90915YZZD1
Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Artem] #4993170 01/28/19 12:57 AM
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dave1251 Offline
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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 10:39 AM
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Brian553 Offline
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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?


Delvac 15w40.............Valvoline Maxlife FS ATF........Liquid Wrench Penetrant
Mobil 1 HM 5w20........Valvoline Asian AF..................Liquid Wrench Chain and Cable



Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Brian553] #4993739 01/28/19 02:33 PM
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1JZ_E46 Offline
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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 02:50 PM
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Brian553 Offline
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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


Delvac 15w40.............Valvoline Maxlife FS ATF........Liquid Wrench Penetrant
Mobil 1 HM 5w20........Valvoline Asian AF..................Liquid Wrench Chain and Cable



Re: Pennzoil 10w40 - 1,621mi - 04 Mazda RX-8 Rotary [Re: Brian553] #4993932 01/28/19 06:11 PM
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1JZ_E46 Offline
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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 06:31 PM
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Kamele0N Offline
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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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