Search results

Here is the latest heavy-duty diesel oil (HDDO) VOAs posted on the PQIA: https://pqia.org/2020/05/14/castrol-gtx-and-ford-motorcraft/

The PQIA posted a VOA of this oil too: http://pqiadata.org/Valvoline_15W40.html I do not understand how this oil is CK4/SN rated since it has >800 PPM of phosphorus. In my area, Walmart no longer stocks this oil, and this specific oil is not listed on Valvoline's website any longer...

At these lower mileage OCIs, it appears that Mobil Delvac 1300 Super 15W40 is performing at the same level as the Mobil Delvac ESP 5W-40. What's interesting is that conventional Delvac 1300 Super CK4 has reduced lower phosphorus and zinc levels, and yet is providing good protection for your 6.7L...

The formulation of Castrol GTX Diesel 15W40 appears to meet all the CK4 requirements. The only source for this HDEO near me is Walmart, and the price is $12.37/gal which is inline with other major oil blenders. However, most of the major blenders offer rebates throughout the year making their...

Looking forward to seeing the results of the VOA for Castrol GTX Diesel 15W40 CK4, especially since this oil does not get much PR on BITOG. Castrol is supposedly in the process of getting OEM approvals. I appreciate and thank you for doing a VOA.

PureGuard 15W40 CK4 meets the Ford WSS-M2C171-F1 specification. However, this batch is a bit low on phosphorus (<1,000 PPM). The sample does contain a good amount of moly and boron. Calcium and magnesium levels are just adequate. Overall, the oil is serviceable for CK4 applications.

At one time, it was listed on the O'Reillys website, but I do not see it currently. It's blended by Omni Specialty Packaging - the same blender as O'Reillys brand 15W40 HDEO.

Given the UOA with Boron being 173, Calcium at 2236, Phos and Zinc over 1000, and the very low amount of Magnesium, this oil could be Rotella T4.

Mobil Delvac 1300 Super 15W40 conventional HDEO in 2017 L5P Duramax - my last no charge dealer oil change.

Castrol GTX Diesel 15W40 CK4 is an often overlooked HDEO, because Castrol does not actively market this oil. The published PDS for Castrol GTX Diesel 15W40 only provides limited technical data. I recently emailed Castrol requesting additional information, and I received the following response...

Castrol GTX Diesel 15W40 CK4 is available at Walmart, and I see it's available at Tractor Supply Company. Currently, TSC has it on sale for $9.99/gal in my area. Like many here on BITOG, I do not have any experience using Castrol GTX Diesel 15W40. It appears this HDEO is not popular, and it's...

I received a response from Mobil Marketing re: Delvac 1300 Super HDEOs being synthetic blends. Effective July 1, 2019 Mobil Delvac 1300 Super HDEO is officially being marketed as a synthetic blend, and Mobil Delvac Extreme as a synthetic HDEO. Since there are no official API guidelines...

Now that the smoke has cleared, and the dust has settled re: Shell's allegation of Delvac 1300 Super failure of the Volvo T-13 oxidation test, I found a posting on Mobil's website claiming that "Mobil Delvacâ„¢ 1300 Super 10W-30 and 15W-40 are synthetic blend diesel engine oils"...

Roost426: I understand your concern about the lower phosphorus levels in Delvac 1300 Super, because I was also concerned. However, I believe the Ford phosphorus scare pertains to the 6.7L Powerstroke, and I further believe the issue is actually a design and/or metallurgy issue with this...

A percent is 10,000 parts per million; so, to convert the phosphorus level of .115% to PPM, multiply .115 x 10,000 = 1,150 PPM.

Yesterday, I was at my local Walmart, and the new CK4 formulation of Super Tech 15W40 was stocked on the shelves. It appears that the new CK4 formulation is making its way into Walmarts as the inventory of CJ4 is depleted. Below is the technical summation of the Super Tech 15W40 CK4 PDS from...

Yesterday, I was at my local Walmart, and the new CK4 formulation of Super Tech 15W40 was stocked on the shelves. It appears that the new CK4 formulation is making its way into Walmarts as the inventory of CJ4 is depleted. Below is the technical summation of the Super Tech 15W40 CK4 PDS from...

If a low temperature climate is not a factor, then either an API Licensed CK4 conventional 10W30 or 15W40 will work just fine. If you are really concerned about a severe duty application, a high-quality 15W40 conventional HDEO is a good option. Conventional CK4 formulations provide excellent...

Super Tech 15W40 has been updated to CK4. It's only a matter of time when the CK4 formulation will be available in local Walmarts. Walmart is in the process of clearing out the remaining inventory of the older CJ4 formulation. Warren Distribution is still the oil blender, at least, in my area.

TSC Traveller HDEO is no longer the same stuff as Super Tech, because TSC changed their oil marketer to Martin Lubricants.