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93 Ford F-350 Turbo Diesel #4808756
07/08/18 11:51 PM
07/08/18 11:51 PM
Joined: May 2012
Posts: 5
Redding, CA
docsuess84 Offline OP
docsuess84  Offline OP

Joined: May 2012
Posts: 5
Redding, CA
Hey everyone, we recently picked up a 93 F-350 work truck and I’m trying to decide what oil to run in it. I normally follow the manufacturer specs but I’m not sure what to make of it. It calls for SAE 30 oil rated CF-4/SG. SG is apparently a defunked rating. Would I just run something like Delo 500 30 weight or Rotella? Or is the manufacture recommendation so out of date it doesn’t matter anymore? Thanks. This thing has a quarter million miles on it already and I want to keep it running. Oh I plan on following the recommended 5000 mile OCI.

Re: 93 Ford F-350 Turbo Diesel [Re: docsuess84] #4808767
07/09/18 01:24 AM
07/09/18 01:24 AM
Joined: Nov 2017
Posts: 318
California
CleverUserName Online content
CleverUserName  Online Content

Joined: Nov 2017
Posts: 318
California
It's a '93 Turbo IDI. Those are kinda rare, good find.

You can use any 10w30 or SAE 30 in CI-4+. This is pre diesel emissions spec for your truck. It will give you lots of zinc and calcium if you want to push the OCI over 5K.

It gets really freakin hot in Redding, CA so maybe you want to use a 15w40 or 5w40 synthetic, I would if I was towing or doing any hauling in that heat. Those are also suitable for winter use in your climate. Lots of conventional and synthetic CI-4+ or CJ-4/CK-4 options in the 40 wt viscosities to choose from.

Re: 93 Ford F-350 Turbo Diesel [Re: docsuess84] #4808809
07/09/18 04:58 AM
07/09/18 04:58 AM
Joined: Oct 2004
Posts: 8,635
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline

Joined: Oct 2004
Posts: 8,635
Cincinnati, OH, USA
I run Delo 400 SAE 30 in my '89. but any major brand HDEO 15W40 (or 10W30) would work fine. The bigger (potential) issue with your truck will be coolant additives, called SCAs, which prevent destructive cavitation of the thin cylinder walls. I did a lot of research on SCAs when I bought my 7.3, and I settled on the DCA-2 type, made by NAPA (NAPA Kool) and others, with a coolant filter plumbed between the heater hoses to catch the silicate drop out (which will settle in the bottom radiator tank otherwise).


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: 93 Ford F-350 Turbo Diesel [Re: docsuess84] #4808837
07/09/18 06:10 AM
07/09/18 06:10 AM
Joined: Jun 2003
Posts: 18,219
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline

Joined: Jun 2003
Posts: 18,219
Deplorable in apple valley, ca
Most people including me run a 15w40. For some reason they don't like rotella,tend to burn it.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 93 Ford F-350 Turbo Diesel [Re: docsuess84] #4808883
07/09/18 07:18 AM
07/09/18 07:18 AM
Joined: May 2010
Posts: 1,226
Ocala, Florida
racin4ds Offline
racin4ds  Offline

Joined: May 2010
Posts: 1,226
Ocala, Florida
Yep, any decent 15W40 diesel rated oil will work fine in that dinosaur. They weren't picky and with your climate no reason to run anything for cold start up.

Rotella makes a fine oil as does Delo. Either one can be had at WalMart on the cheap.


Just say NO to thin oils and M1!
05 F350 Powerstroke
05 Hyundai Tucson
08 Legacy GT
Re: 93 Ford F-350 Turbo Diesel [Re: docsuess84] #4808931
07/09/18 08:13 AM
07/09/18 08:13 AM
Joined: Oct 2014
Posts: 13,070
Canyon County Idaho
CT8 Online content
CT8  Online Content

Joined: Oct 2014
Posts: 13,070
Canyon County Idaho
I lived in Palo Cedro for 17 years and 15W- 40 oil is perfect. 5W-40 is a waste of money until you get below 20*f consistently. I will say the 15w 40s are a better oil


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: 93 Ford F-350 Turbo Diesel [Re: docsuess84] #4808975
07/09/18 09:00 AM
07/09/18 09:00 AM
Joined: May 2012
Posts: 5
Redding, CA
docsuess84 Offline OP
docsuess84  Offline OP

Joined: May 2012
Posts: 5
Redding, CA
Awesome. Thanks for the tips. It is primarily used for towing a dump trailer and it is indeed ridiculously hot right now.

Re: 93 Ford F-350 Turbo Diesel [Re: Chris142] #4809267
07/09/18 12:59 PM
07/09/18 12:59 PM
Joined: Mar 2016
Posts: 1,171
MT
jongies3 Offline
jongies3  Offline

Joined: Mar 2016
Posts: 1,171
MT
Originally Posted By: Chris142
Most people including me run a 15w40. For some reason they don't like rotella,tend to burn it.

Must be an IDI thing because my 1997 7.3 Powerstroke loves Rotella T6, it leaks a little but not much, rarely have to add any makeup oil.


2004 Toyota Tacoma 3.4 V6: Mobil 1 AFE 0W-30, FRAM TG-3600 filter
1969 Mustang Mach 1 5.8 V8: PYB 10W-30 Napa Gold 1515 filter
2013 Honda 400EX ATV: Mobil 1 Racing 4t 10W-40 OEM filter
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