zddp maxx with Castrol TWS?

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I have hydraulic flat tappets and cannot buy oil in this market with a high zddp level.
Currently using Castrol TWS with a content of around 1000.

What about this zddp and phosphorous package?

zddp maxx
 
Originally Posted By: d00df00d
Why are you using TWS?

Why do you feel you need to add ZDDP to it?


TWS= because it's a good Castrol oil for my high revving boxer engine used in hot climates and hard street conditions. The boxer is 25 years old. Very commonly used oil in UK and the rest of Europe in the same engine.

ZDDP = see above. (flat tappets have always needed a good zddp level - most modern engine oil have lowered the level for cats)
 
You don't NEED tws, you just think you do, I use whatever 30 or 40wt I get on sale or FAR in my 20 year old motor that revs 8k and I take it there often, but I never have any issues.

Don't spend the extra for TWS, get something cheaper and add ZZDP for the flat tappets.
 
Originally Posted By: Brenden
You don't NEED tws, you just think you do, I use whatever 30 or 40wt I get on sale or FAR in my 20 year old motor that revs 8k and I take it there often, but I never have any issues.

Don't spend the extra for TWS, get something cheaper and add ZZDP for the flat tappets.


What are the factory specs for your engine?

30 or 40 oil would drop my oil pressure to 10 psi in no time.

10w/50 is the MINIMUM factory specifications for my alfa romeo.
You do not want to drop a 40 oil in there. It's an 8v engine with strong valve springs for the high revving design.
The tappets bleed out and you get lash.
It's designed for a 50 or 60 oil.

I'm not looking to save money. I'm looking for the best and my question was about the additive and not most suitable grades of oil.
 
TWS is used in BMW's S54 engine, which has flat tappets and revs to 8,000 RPM. It's also used extensively in race engines. I wouldn't be too concerned about its ZDDP level.
wink.gif
 
Originally Posted By: d00df00d
TWS is used in BMW's S54 engine, which has flat tappets and revs to 8,000 RPM. It's also used extensively in race engines. I wouldn't be too concerned about its ZDDP level.
wink.gif



I knew TWS was for BMW engines but wasn't aware that some had flat tappets.
That is good news and reassuring.

Thanks.

I heard though that 1000 ppm was the bare minimum for flat tappets. 1300-1400 is much safer.
I have new cams and tappets so am rather concerned about them getting damaged again.
 
Originally Posted By: Brit33
I heard though that 1000 ppm was the bare minimum for flat tappets. 1300-1400 is much safer.

As far as I know, this kind of blanket statement doesn't really work because the optimal ZDDP level depends on the oil's chemistry and various factors about the engine.
 
Originally Posted By: Brit33
I have hydraulic flat tappets and cannot buy oil in this market with a high zddp level.


Nothing wrong with ZDDP Maxx, in my view. You may want to contact user Widman. He knows more about oils available in that part of the world than anyone else here.
 
diesel oils. valvoline premium blue diesel emgine oil 15w40 factory fill for dodge cummins diesel. it has tons of zinc. stop at your cummins dealer and get the info sheet cf-2134. i run it in my 2001 dakota V-6, have used it for 2 years.
 
I would have suggested an HDEO, too, but he is adamant that he wants at least a 50 grade.

That reminds me, perhaps Mobil 1 15w-50 is available in that part of the world. That has plenty of ZDDP. I don't know how Castrol Syntec 5w-50 looks these days, or if it's available there, but that's another option.
 
Originally Posted By: Garak
I would have suggested an HDEO, too, but he is adamant that he wants at least a 50 grade.

That reminds me, perhaps Mobil 1 15w-50 is available in that part of the world. That has plenty of ZDDP. I don't know how Castrol Syntec 5w-50 looks these days, or if it's available there, but that's another option.


Unfortunately neither are available here.
I spoke personally with Castrol and they don't import it to Uruguay (like most things!). Uruguay is like a little part of the world all on its own (like Cuba) but next to the huge city Buenos Aires.

p.s adamant yes because this is what the car was designed for and actually needs a little bit more pressure because the crank is 25 years old and is driven hard.
 
If you dont mind spending the money it wont hurt, and I have heard good things about zddp maxx. But even here it is a little pricey, which is why I havent tried it yet. So I'd imagine paying USD and getting it shipped would make it pretty costly.

Not that they are not any good oils available in your country, but the few south american and eastern europe/middle east UOA/VOA that have been posted didn't look so great. I remember one that was an "HDEO", but it wasnt in grade and the add pack looked like... well it look like they forgot to add it.

we tend take for granted how easy good, in spec oil is to find and buy in north america/western europe
 
Last edited:
Originally Posted By: Texan4Life
If you dont mind spending the money it wont hurt, and I have heard good things about zddp maxx. But even here it is a little pricey, which is why I havent tried it yet. So I'd imagine paying USD and getting it shipped would make it pretty costly.

Not that they are not any good oils available in your country, but the few south american and eastern europe/middle east UOA/VOA that have been posted didn't look so great. I remember one that was an "HDEO", but it wasnt in grade and the add pack looked like... well it look like they forgot to add it.

we tend take for granted how easy good, in spec oil is to find and buy in north america/western europe


Thanks for the understanding. Yes we can't just pop down to Walmart and stock up with 5 quarts of decent oil here. Although Motul is widely available. Been using 300v recently.

20 bucks for 3 bottles of MAXX plus 14 bucks shipping is pretty good for us. Considering 1 litre of TWS costs 22 USD more or less it's not too bad.
Liqui Moly 10w60 here sets me back about 140 bucks (5 litres)
 
Originally Posted By: Brit33
p.s adamant yes because this is what the car was designed for and actually needs a little bit more pressure because the crank is 25 years old and is driven hard.


I wouldn't completely dismiss HDEOs, however. You may be able to find a 15w40 HDEO with an HTHS rather close to that of the oil you're considering. Then again, I may be mistaken and such an animal may not exist.

Even if it does, you're still stuck with actually tracking it down. If a wide variety of PCMOs aren't readily available in your locale, the same may hold true for HDEOs.

What's the Valvoline availability like down there? Valvoline VR1 comes in 20w-50 and straight 50, and will have plenty of ZDDP. Up here, it's almost attractively priced.
wink.gif
And it's not a strictly racing only oil, in that it does have satisfactory detergent levels.

Again, check with Widman. He'd be the best resource I know of for sourcing appropriate quality oils in your neck of the woods.
 
Originally Posted By: Garak
Originally Posted By: Brit33
p.s adamant yes because this is what the car was designed for and actually needs a little bit more pressure because the crank is 25 years old and is driven hard.


I wouldn't completely dismiss HDEOs, however. You may be able to find a 15w40 HDEO with an HTHS rather close to that of the oil you're considering. Then again, I may be mistaken and such an animal may not exist.

Even if it does, you're still stuck with actually tracking it down. If a wide variety of PCMOs aren't readily available in your locale, the same may hold true for HDEOs.

What's the Valvoline availability like down there? Valvoline VR1 comes in 20w-50 and straight 50, and will have plenty of ZDDP. Up here, it's almost attractively priced.
wink.gif
And it's not a strictly racing only oil, in that it does have satisfactory detergent levels.

Again, check with Widman. He'd be the best resource I know of for sourcing appropriate quality oils in your neck of the woods.


Valvoline we have but the 20w50 just conventional mineral oil.
Or Synthetic 10w40 Premium blue but again this will be too thin in summer. In the city the engine cooling relies on the fans mostly and we have very short junctions, many start/stop type of driving with fast starts (very Italian style driving - kind of chaotic).
This summer I measured 55 degrees in the direct sun (40 in the shade).

I think the best option is for me to stick with the 10w60 and maybe add this additive.
I may ask Castrol directly for their opinion.
 
Originally Posted By: Garak

What's the Valvoline availability like down there? Valvoline VR1 comes in 20w-50 and straight 50, and will have plenty of ZDDP. Up here, it's almost attractively priced.
wink.gif
And it's not a strictly racing only oil, in that it does have satisfactory detergent levels.




X2 I was thinking the same thing.
 
Originally Posted By: KCJeep
Originally Posted By: Garak

What's the Valvoline availability like down there? Valvoline VR1 comes in 20w-50 and straight 50, and will have plenty of ZDDP. Up here, it's almost attractively priced.
wink.gif
And it's not a strictly racing only oil, in that it does have satisfactory detergent levels.




X2 I was thinking the same thing.


No VR1 here.
 
Well, with no VR1, your best bet is your original plan, the 10w-60 with the additive. Royal Purple also has some ZDDP heavy oils, in thicker grades, too, but you'd undoubtedly have trouble finding it there.
 
RP/Amsoil, they would never even heard of these oils here! Lol

Even when I asked for 0w50 or 5w50 grades they told me these don't even exist. I informed them politely and they learned something new!

3 bottles of MAXX with shipping is only 34 bucks.
1 oil change a year plus 1 bottle = just over 11 bucks a year for the additive.
 
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