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follow up question on ZDDP
- Thread starter griff
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TR3driver
Great Pumpkin - R.I.P
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Motor oil 'detergent' helps keep dirt particles suspended, so they can be removed by the filter, instead of allowing them to settle and 'plate' out on components.
I ran the old Valvoline racing oil (before it became known as VR1) for many years, and it worked very well for me. Engines were very clean, so the detergent level appeared to be adequate for the job.
Castrol OTOH always left a layer of sludge in the bottom of the oil pan and in the rocker shaft (although not nearly as bad as some other oil brands).
I ran the old Valvoline racing oil (before it became known as VR1) for many years, and it worked very well for me. Engines were very clean, so the detergent level appeared to be adequate for the job.
Castrol OTOH always left a layer of sludge in the bottom of the oil pan and in the rocker shaft (although not nearly as bad as some other oil brands).
D
Deleted member 8987
Guest
Guest
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You run non-detergent for break-in (so the garbage settles out), change it HOT so it flushes, then use detergents.
I got 300K out of my last motor using Valvoline 30WT HD.
NEVER use something you have to ask for.
We used to call it "motor killer" in the shops.
Dave
I got 300K out of my last motor using Valvoline 30WT HD.
NEVER use something you have to ask for.
We used to call it "motor killer" in the shops.
Dave
6TTR3A
Jedi Warrior
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I've been a Valvoline fan for many years (&miles)with no problems. They have changed their VR1 formula recently (2007) to conform to EPA standards but the Zinc Phosphate ratio is (almost IMO) acceptable for our solid tappet engines. I get anal & add either the GM break-in stuff or the Moss "ZDDP" 4 oz. stuff.
FRank
FRank
TR3driver
Great Pumpkin - R.I.P
Offline
They've changed their line up and labeling several times now; currently the "Not street legal" stuff is NOT VR1, only "Valvoline Racing", and there is also both "conventional" and "synthetic" VR1.
https://www.valvoline.com/products/consumer-products/motor-oil/racing-motor-oil/
But the EPA has not (AFAIK) actually published standards for zinc & phosphorus in motor oil; these are basically voluntary efforts by the API to avoid having the EPA make the rules. In spite of the "not street legal" label, it is perfectly legal to use these oils in older engines driven on the street; just not in newer emission-controlled engines that specify low-zinc, low viscosity oil as part of their emissions package.
https://www.valvoline.com/products/consumer-products/motor-oil/racing-motor-oil/
But the EPA has not (AFAIK) actually published standards for zinc & phosphorus in motor oil; these are basically voluntary efforts by the API to avoid having the EPA make the rules. In spite of the "not street legal" label, it is perfectly legal to use these oils in older engines driven on the street; just not in newer emission-controlled engines that specify low-zinc, low viscosity oil as part of their emissions package.
hondo402000
Darth Vader
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yea and we all know when the government makes rules WE ALL Loose cause they dont know what they are talking about. Dont get me started
Hondo
Hondo
TR3driver
Great Pumpkin - R.I.P
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Not all synthetics do that. As a long time user of Valvoline synthetic, I can report that not one of my cars (including non-LBCs) has leaked any worse; and in one case oil consumption actually dropped remarkably.billspit said:
OTOH it was Castrol that argued that the word "synthetic" is basically meaningless ... I wouldn't pay extra for it.
https://www.google.com/#hl=en&q=castrol+hydrocracked+oil
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