Cf2 Enigma

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Thoughts on Supertech CF2/SG oil? I almost picked up some today 9.00 for a gallon. But then I put it back convincing myself good oil can't be that cheap and went with some Motorcraft 5w30. But if it's good oil for older cars pre-2000 or lawn mowers, I would use it.
 
I have 2 cars, and several OPE that could use that. Is that a regular stocked item at Wally or was it a clearance item
 
I have 2 cars, and several OPE that could use that. Is that a regular stocked item at Wally or was it a clearance item
It's always at my local Wally for that price and they also sell damaged Full Synthetic 12 quart boxes for 33.99. But the bag inside is never damaged & it's ever only the 10w30 flavor
 
Just don't know it's safe for my 2Gr-FE no one seems to know on here, been using Edge Gold bottle, but at 9 a gal. Cf-2 here I come, probably good for the Kubota too
 
CF-2 is for 2 stroke diesels, I'd leave it for that application, there's plenty of better choices for passenger car engines. I'd run 10W30 or 15W40 CK-4 in a passenger car over CF-2 any day.
 
CF-2 is for 2 stroke diesels, I'd leave it for that application, there's plenty of better choices for passenger car engines. I'd run 10W30 or 15W40 CK-4 in a passenger car over CF-2 any day.
Are those 2stroke deisel using the oil blended into their gas? Or do these 2 stroke deisels have oil sump like a regular 4 cycle engine?
 
Are those 2stroke deisel using the oil blended into their gas? Or do these 2 stroke deisels have oil sump like a regular 4 cycle engine?
It's like a regular 4 stroke engine, but the detroit 2 stroke burn a lot of oil, I'm not exactly sure why, I don't know a whole hell of a lot about 2 stroke diesels, but I know enough about them to know that CF-2 oil is lower ash and may have lower amouts of additives compared to 4 stroke oil because they burn so much oil that standard diesel oil which back when CF-2 was created was likely 1.5-2% ash would really create nasty combustion chamber and exhaust valve deposits.
 
I assume you are talking about a SAE 30 Monograde from Supertech that's rated API SG / CF-2. If so there is a VOA for one here

https://bobistheoilguy.com/forums/threads/walmart-supertech-sae-30-cf-2.350689/

Try to find out it's viscosity index (VI), if it's around 105 or more then it's probably a Group II base.
I suspect some of these oils, if made on Group-II base, could easily be API SL or more, but are only SG because that is what the market is looking for.

More monograde talk here
https://bobistheoilguy.com/forums/threads/53-studes-voa-carquest-sae-40.343700/
 
It's like a regular 4 stroke engine, but the detroit 2 stroke burn a lot of oil, I'm not exactly sure why, I don't know a whole hell of a lot about 2 stroke diesels, but I know enough about them to know that CF-2 oil is lower ash and may have lower amouts of additives compared to 4 stroke oil because they burn so much oil that standard diesel oil which back when CF-2 was created was likely 1.5-2% ash would really create nasty combustion chamber and exhaust valve deposits.
Yeah back in the old days of high sulphur fuel, a regular diesel oil would be very high sulphated-ash, like you said 1.5% SA would be normal. The 2 stroke diesels ran about half that, say 0.7% SA. Just from reading around, I'm no expert here.

However this "low" 0.7% ash, has now become normal with many PCMO Euro C3 oils being at roughly the same level.
 
Yeah back in the old days of high sulphur fuel, a regular diesel oil would be very high sulphated-ash, like you said 1.5% SA would be normal. The 2 stroke diesels ran about half that, say 0.7% SA. Just from reading around, I'm no expert here.

However this "low" 0.7% ash, has now become normal with many PCMO Euro C3 oils being at roughly the same level.
Yeah but modern C3 oils have had a lot more research put into them and have more expensive additive packages than would be economical to use in an oil intended to be sold for under $10/gal for use in a detroit oil burner.
 
Yeah but modern C3 oils have had a lot more research put into them and have more expensive additive packages than would be economical to use in an oil intended to be sold for under $10/gal for use in a detroit oil burner.
Yes, very true. I'm more just saying that low ash of yesterday is close to typical ash levels of today.
I'm certainly not advising anyone to use a Euro C3 in a DD engine, or vice versa.
 
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Found this from an oil expert Doug Hillary

"The DD two strokes require a API CF2 lubricant and the SA level should not exceed 1%. Zinc must be above 700ppm and it needs a TBN in the 7 to 10 range Viscosity must suit the conditions and typically this is SAE40 Delvac in OZ had/has these products 1230D, 1240D, 1250D Castrol also market an excellent product "CRB" in SAE30,40 and 50. I have used this product with great success over many years"

Ref:
https://bobistheoilguy.com/forums/threads/2-stroke-diesel-detroit-8v92ta-oil.103678/
 
Very interesting. Thank you everybody
So you know I'm using a API SG/CD monograde SAE 30 myself in my car right now, just to give it a go. The car is a 2006 port injected 4-cylinder GM.

The oil has high zinc (1170 ppm), but lowish TBN (6.5), so good wear protection but not for extended drains. It's viscosity index (VI) is 113, so this definitely says Group-II to me, so a modern monograde. I live in a hot climate, so no worries with cold starts.

Looking at similar oils I’m expecting the HTHS ~ 3.3 to 3.4 cP and Noack ~ 5%

https://penriteoil.com.au/products/small-engine-4-stroke-sae-30-mineral

Penrite: "Small Engine Four Stroke Mono 30 is a premium mineral, non-friction modified engine oil formulated with modern additives for use in small four stroke engines. It provides complete protection against wear & corrosion and is designed to meet the lubrication needs of small four stroke engines."
 
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