What is "Plan B" if I can't get Amsoil Z-Rod for My 1990 Corvette ZR-1.

[Slow Car Sport Mode]

I think if OP was originally seeking Amsoil, he should check out http://www.hplubricants.com or message the owner @High Performance Lubricants about which exact product to order something equivalent or better. I'm sure they would be happy to fill the order.

Their oils meet or beat A40 as well.

The Walmart available oils mentioned should be fine as well but I heard Amsoil.

OP also mentioned being in Canada as to availability.

For Euro oils: https://www.hplubricants.com/hp-synthetic-motor-oil-2-2/

High Performance Lubricants’ Euro passenger car engine oil is a multi-synthetic high performance motor oil made with the best choices of additive chemistry. This series takes advantage of high quality PAO base oils delivering superb pour points as well as an advanced VI Improver that has superior shear stability index. These oils are formulated with specifically chosen esters that can help minimize intake valve deposits, maintain clean engines, and provide elastomer compatibility. HPL Euro PCMO is formulated with extra anti-wear and antioxidant additives to minimize wear while offering an extended oil life compared to other motor oils. These premium oils are not something you will find on the shelf of a discount retailer. If you are a person looking for a product that will outperform traditional mineral and synthetic oils our products will be a perfect fit for you.

Meets or Exceeds:

VW 508 00/509 00, VW TL 52577, Porsche C20, ACEA C5, API SN Plus – 0W-20
VW 504 00/507 00, Porsche C30, ACEA C3 – 0W-30
VW 504 00/507 00, Porsche C30, ACEA C3, API SN, BMW LL-04, Daimler MB 229.51 – 5W-30
VW 502 00/505 00, Porsche A40, ACEA A3/B4, API SN/CF, Daimler MB 229.5/226.5, Renault RN0700/0710, PSA (2018) B71 2296 – 5W-40
Chrysler MS6395 (0W-20, 5W-20, 5W-30)

Meets or Exceeds:

VW 508 00/509 00, VW TL 52577, Porsche C20, ACEA C5, API SN Plus – 0W-20
VW 504 00/507 00, Porsche C30, ACEA C3 – 0W-30
VW 504 00/507 00, Porsche C30, ACEA C3, API SN, BMW LL-04, Daimler MB 229.51 – 5W-30
VW 502 00/505 00, Porsche A40, ACEA A3/B4, API SN/CF, Daimler MB 229.5/226.5, Renault RN0700/0710, PSA (2018) B71 2296 – 5W-40
Chrysler MS6395 (0W-20, 5W-20, 5W-30)

Porsche A40

They have a separate distributor page for purchasing. The link is in the product description link.

They also have three different tiers of "regular" or non-Euro PCMO.. all of which are phenomenal.

 

[weaponoffreedom]

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My 1990 Corvette ZR-1 with the Lotus designed LT5 will be going in for some servicing the first of next week, and I won't be able to get my usual Amsoil Z-Rod 10W-30 by then. The LT5 wants its high ZDDP levels, so standard oils in the 800-900 range won't work.

I was looking for the High Mileage Mobil 1 at the local Wal-Mart, and all they had was 0-20 and 5-30.

Being in Canada, some of the smaller brands that can be bought in the US aren't easily available up here.

Any plan B recommendations? Oils that would do lesser harm?

Liqui Moly MoS2 Anti-Friction 10W-40 has been recommended as a viable option, but I'm not that familiar with it. Seems the ZDDP levels are good in it.

​

That is a little known Supercar. Baddest car on earth in 1990, and still pretty bad ass.

I suggest you sell it to me, I will take care of it. 30K$????

Valvoline Racing 10w30 synthetic can usually be found at the parts stores. Hendrick motor sports uses Valvoline racing 10w30 in Nascars..........100% verified.

 

[kschachn]

Arrow hasn’t been on for nearly a year.

 

[weaponoffreedom]

Arrow hasn’t been on for nearly a year.

oh, well the offer still stands