Oil questions - Ford Truck Enthusiasts Forums



1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Oil questions

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 01-13-2018, 03:40 PM
1979brandon's Avatar
1979brandon 1979brandon is offline
Junior User
Thread Starter
 
Join Date: Jul 2017
Posts: 67
1979brandon is starting off with a positive reputation.
Oil questions

hi guys. Quick question for someone who knows more than me. I recently rebuilt a 460 for my ‘89. The machine shop had me break it in with 20w50 with zinc for the cam. I am at the point where I would like to put the oil in it that I’ll be using for regular use. The shop recommended 15w40 but all I can find says diesel on it. Does anybody have any insight to this or is it ok to use the oil that says diesel on it? Or should I use a different weight?
Reply With Quote
  #2  
Old 01-13-2018, 04:00 PM
yardbird's Avatar
yardbird yardbird is offline
Elder User
 
Join Date: Dec 2003
Location: Foothills of NC
Posts: 801
yardbird is starting off with a positive reputation.
Been using 15/40 Rotella in my '87 4.9 and '94 Dodge Ram V-10 for years. Has lots of good detergents and anti-wear agents in it. I use either Rotella T5 or Delo XLE 10/30 diesel oil in both my cars, a Grand Marquis with a 4.6 and a Sonata with a 2.4. All are spotless inside the engine and I get great service out of a superior oil for my engines.

Today's auto oils do not have the additives needed for older flat tappet engines.
Reply With Quote
  #3  
Old 01-13-2018, 04:42 PM
1979brandon's Avatar
1979brandon 1979brandon is offline
Junior User
Thread Starter
 
Join Date: Jul 2017
Posts: 67
1979brandon is starting off with a positive reputation.
Thanks brother. I guess I’ll go for it then.
Reply With Quote
  #4  
Old 01-13-2018, 05:18 PM
rla2005's Avatar
rla2005 rla2005 is online now
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 13,453
rla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud of
X2....Diesel oil still has plenty of zinc in it so the flat tappet cam and lifters will survive.
Reply With Quote
  #5  
Old 01-13-2018, 06:17 PM
Bruce W. Bruce W. is offline
New User
 
Join Date: Sep 2009
Posts: 14
Bruce W. is starting off with a positive reputation.
I've been running 10W30 Rotella in my '97 F350/460 for about the last 110K miles. It only uses/leaks a little over a pint to a 3K oil change. Still sounds nice and tight, runs great.
Reply With Quote
  #6  
Old 01-13-2018, 06:27 PM
00t444e's Avatar
00t444e 00t444e is offline
Senior User
 
Join Date: May 2017
Location: Southern OH
Posts: 234
00t444e is starting off with a positive reputation.
I don't have much experience with the 460 but I run 15w40 diesel oil in my Jeep 4.0 because it has a flat tappet cam.
Reply With Quote
  #7  
Old 01-13-2018, 07:39 PM
95fiveoh 95fiveoh is online now
Junior User
 
Join Date: Nov 2016
Posts: 52
95fiveoh is starting off with a positive reputation.
I ran Chevron Delo 15w40 in my grandpap's old LeSabre for close to 10 years. It was spotless inside and ran excellent. I'd still have it if the car around it didn't rust apart.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
65 ford f100 rear axle question cris.phoenix87 1961 - 1966 F-100 & Larger F-Series Trucks 5 09-26-2017 09:38 PM
OLD OIL? RÖENTGEEP 1994.5 - 1997 7.3L Power Stroke Diesel 28 09-19-2016 12:11 PM
Oil Question littleapple 1999 to 2016 Super Duty 5 08-25-2016 01:03 PM
Servicing 930ZZZ 1999 to 2016 Super Duty 8 04-05-2016 10:32 AM
Diesel oil (15w 40) in a gas motor? Muchopesos 1987 - 1996 F150 & Larger F-Series Trucks 9 03-27-2016 04:04 PM


Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 06:44 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.