From: James Shanks (n1vbn@bit-net.com)
Date: Sun Feb 22 2004 - 23:15:38 PST
Here is a list of oils that are ok for Diesel Service. I copied this off a
Volkswagen web site but the data applies to any Diesel as far as oils that
are ok to use.
What kind of Oil do I use in my TDI? ( Turbo Diesel Injected )
----------
VW of America specifies CD-rated oil for the diesels, in the owner's
manual. This specification was obsolete at the time of manufacture - read
the next section to see what the ratings mean, but many revisions (latest
is CI-4 I think) have superseded it completely. It's even been said that
the CD rating is no longer allowed to be used, it's so out-of-date. VW has
specified to Castrol and to me that the TDI requires CG-4. But be aware
that VW dealers may not use properly-rated oil in your car when they
service it! Looking at the API ratings, though, it's clear exactly why
CG-4 is appropriate for this application. Both Mobil and API refer to the
high-soot tolerance of CG-4, while several oil companies are mentioning why
SJ is now getting further away from the diesel requirements. One dealer was
using Castrol GTX (not diesel-rated) and the other dealer used Quaker State
(also not diesel-rated).
----------
What do the API ratings mean? For starts, the "C" specification is for
diesel (compression ignition) and the "S" series is for gasoline (spark
ignition). Within each category is a series of specifications like CC, CD,
CE, CF, CG, CH, SG, SH, SJ, etc. Look at the <http://www.api.org>API
website for better info. If you just want the short version, this was from
Mobil's website:
Here is a short description of the diesel engine categories, starting with
the most current.
CH-4 is a proposed category at this time, which we anticipate being
finalized during the first half of 1999. CH-4 is being developed to address
engine design changes required to meet new 1998 EPA emission standards.
CG-4 was developed for oils used in 1994 and later, low-emission,
high-speed, four-stroke cycle diesel engines. It is also typically used for
diesel engines using low-sulfur diesel fuel. Newer engines that are used
on-highway or off-highway applications may call for CG-4 quality oils. One
of the main advances in CG-4 versus previous quality levels is the ability
of the oil to handle high levels of soot that is generated by some of these
low-emission engines.
CF-4 was established in 1991 to specify oil quality for severe- duty,
low-emission, four-stroke diesel engines produced in 1991 or later. Oils
meeting this category offered improved control of oil consumption and
piston deposits versus previous quality levels. CF-4 has essentially
replaced the CE quality rating.
CF-2 was established at the same time to specify oil quality for severe
duty two-stroke diesel engines. CF-2 has essentially replaced CD II.
CF was established for service typical of off-road, heavy-duty diesel
engines and engines operating on higher sulfur fuels. The CF quality level
essentially replaced the CD level.
CE was established in 1988 to specify oils for severe-duty diesel engines
with turbochargers. This rating is essentially obsolete and oils meeting
CF-4 are now used in applications calling for CE oils.
----------
At the time of purchase, I found the following oils to be certified for
diesel use. All were cross-checked with the API listings. This is now out
of date, but the links might be useful so I'll leave it here:
Amsoil
(websites make references to other ratings, but API does not list them)
XL-7500 (CF)
Castrol
per Barbara at Customer service, (973) 633-2200:
SynTec Full Synthetic (CF)
RX Super (CG-4)
SynTec Blend in 15W40 (CG-4)
GTX is NOT for diesels
Chevron
Delo-400 15W40 (CH-4)
Havoline
(Texaco) per
<http://www.texaco.com/tlc/products/havoloroilsn.htm>http://www.texaco.com/tlc/products/havoloroilsn.htm
Havoline Formula3 Synthetic, SAE 5W-30, 10W-30 and 5W-40 (CF, EC)
Mobil
Mobil 1 (CF)
Delvac 1 and Delvac 1300 (CG-4)
Pennzoil
per telecon and email with their tech services:
Long-Life (CH-4, CG-4), in 30, 40, 50 and 15W-40.
Supreme Duty (CH-4, CG-4) in 30, 40, 50 or 10W-30.
"Formulations in "SJ" motor oils have changed to meet current demands for
gasoline engines. We no longer recommend oil with a single SH or SJ API
rating for diesels."
Quaker State
FCI grades are CG-4 per their catalog
Shell
Rotella T 15W40
Valvoline
All-Fleet Plus (CF-4)
Racing Formula (CD)
At 07:37 PM 2/22/2004, Glenn Shaw wrote:
>Hi Bruce
>You are OK since GM states in their manual for these engines that you
>should never run 10W40 under any circumstances. This repeated in the
>manual with the warning that engine warrantee will be void. GM
>recommends 15W40 or 10W30 Diesel rated oil. The Army TM recommends
>either straight 30W or 10W30 Diesel rated oil. So you are fine with
>30W, 10W30, or 15W40 depending on ambient temps the truck will see.
>
>Glenn
>M1009
>
>-----Original Message-----
>From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On
>Behalf Of Bruce Beattie
>Sent: Sunday, February 22, 2004 6:41 PM
>To: Military Vehicles Mailing List
>Subject: [MV] CUCV M1008 oil question
>
>Ok guys, here's your chance for a laugh. I went down to napa and asked
>for 2 gals of 10w40,
>The guy said ok and loaded them into some bags. Came home, drained the
>oil, changed the filter
>and primed it, started to put the remainder of oil in and then that's
>when I noticed that it was all
>10W30.
>
>I figure it wont hurt to run on this for a while, but how soon should I
>change oil again?
>
>Thanks,
> Bruce MVPA 23824
>
>
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