60/40, 50/50, or 40/60 Caterham Blend

[elkid]

Hello everyone and Happy Holidays!

Due for an oil change soon and was thinking of using this custom blend, but I'm not sure what ratio to use. I have a 1989 Acura Integra, 1.6L w/manual trans. I used to drive 50 miles one way to work (100 round trip). I recently got into car pool that has cut my driving in half... so, 25 miles one way, or 50 round trip (don't know how long I'll stick the car pool).
The reason I'm not sure about which ratio to use, is because this car revs high. Highways around here are 65MPH. At 70mph my rpm is approximately 3650 and I'm in the slow lane but I try to stick to 70mph.

I remember reading somewhere that maintaining this high rpm is tough on oil and causes them shear. Anyone know if this is true? If it is, should I then blend for a higher HT/HS number? The car is spec'd for 5w30.

Thank you for your help.

 

[Shannow]

Given that the inventor of the blend stated initially that it was because mobil didn't do a 0W30 in Canada (the story changed as time moved on to its inherent superiority to the Mobil 0W30 offering)...just pick a 0W30, or 5W30 as required.

If you want a high HTHS, try Penzz 0W30 euro

https://bobistheoilguy.com/forums/ubbthreads.php/topics/3827896/PP_EURO_LX_0W30#Post3827896

 

[TFB1]

Originally Posted By: Shannow
Given that the inventor of the blend stated initially that it was because mobil didn't do a 0W30 in Canada (the story changed as time moved on to its inherent superiority to the Mobil 0W30 offering)...just pick a 0W30, or 5W30 as required.

If you want a high HTHS, try Penzz 0W30 euro

https://bobistheoilguy.com/forums/ubbthreads.php/topics/3827896/PP_EURO_LX_0W30#Post3827896



Don't they always??

Kinda like fishing stories...

 

[Padawan]

For a '98 D-series in VA, I'd use a 10W-30 conventional. Those engines don't require exotic oil and there will be no benefit to trying to blend your own.

 

[BrocLuno]

+1

 

[BrocLuno]

3,650 is not high RPM... For Japanese motor, 5,500+ would be high. For a USA motor 4,500 would be starting into the upper range. You are in a range that a lot of engines run. No big deal ...

 

[lubricatosaurus]

Go with 100% M1 0w-40 for the older engine.

 

[elkid]

Forgot to mention that I'm currently running M1 0w30 with 10k change intervals.

@Shannow That is precisely why I was thinking of using it.

Two oil changes ago I was running the oil formally known as GC. The engine was quieter but I'm guessing it was due to the oil being heavier than M1 0w30.

 

[Nate1979]

I can guarantee that there is zero proof by any member of this site that your blend in any shape or form would be superior to anything you can buy off the shelf.

 

[elkid]

@lubricatosaurus - I was actually considering that was well.

@Nate1979 - Luckily I don't require proof. Just asking for opinion.

 

[camrydriver111]

I would use the Caterham blend because it's tried and tested.

 

[OVERKILL]

Originally Posted By: camrydriver111
I would use the Caterham blend because it's tried and tested.


Yeah, it has numerous OEM approvals and proper CCS and MRV values available for it too

It has definitely passed all the API and ACEA testing protocols as well.

 

[Shannow]

Originally Posted By: camrydriver111
I would use the Caterham blend because it's tried and tested.


Do you have the actual test results for (e.g. API SN) ?

Sequence IIIG ?
Sequence IVA ?
Sequence VIII ?
Sequence VIID ?

 

[BrocLuno]

If an engine makes noises on one oil, that oil should be crossed off the list. Noise is bits banging together. Never a good thing. You can "over quiet" and engine with something like 20W-50, but if you notice it sounds bad, it is. Change to something else.

 

[Nate1979]

Originally Posted By: elkid
@lubricatosaurus - I was actually considering that was well.

@Nate1979 - Luckily I don't require proof. Just asking for opinion.


Ah, ok if you want opinion I think this mix will perform worse than off the shelf oil in similar thickness.

 

[Nate1979]

Originally Posted By: camrydriver111
I would use the Caterham blend because it's tried and tested.


LOL, you should post this in the humor section.

 

[userfriendly]

Sources say it's probably the best thing since sliced bread and independent product analysis say it could be up to 10x better than some of the competitors' engine oils.

 

[Rolla07]

Wow, car is 25-26 years old. What mileage and is it consuming oil? More info provided= better recommendations.

 

[dailydriver]

Originally Posted By: lubricatosaurus
Go with 100% M1 0w-40 for the older engine.


This is what I would do if you are worried about shear, since this probably will not shear/dilute down to any thinner than the GC 0W-30 you were using, and which had this engine running quietly.

Plus, you get the benefit of it's higher VI as well.

LOL
(AND a high starting TBN for longer drains/better resistance to shear/dilution/acid formation.

)

 

[elkid]

Originally Posted By: Rolla07
Wow, car is 25-26 years old. What mileage and is it consuming oil? More info provided= better recommendations.


It has 167,000 miles and it consumes 1 quart in about 5000 miles. It has a 4 quart sump, so a 5 quart bottle (or 5 quarts on sale) in perfect for 10K miles.