E-250 4.9L Oil viscosity
Thread Starter
|
New User
Joined: Apr 2005
Posts: 3
Likes: 0
E-250 4.9L Oil viscosity
I have an '87 Ford E-250 4.9L inline six work van. I have a carpet cleaning machine that runs off of the van (PTO), so the van has to idle at a medium RPM while I'm on the job, probably around 2000 rpms. the motor was rebuild 5 years ago, a ford authorized rebuild.
The past owner ran straight 30 weight oil.
I run, 10w-30 amsoil synthetic. It leaks a little bit of oil, but not to where I have to refill it every other day.
Just wanted some opinions on the weight of oil i should use, since it has to idle that like up to 1-3 hrs at a time depending. It doesnt over-heat, but I want to make sure its heavy enough oil. was thinking of putting in 20w-50 synthetic, and a heavier one I would assume would slow down the oil drips. I live in washington state, so the summers are kinda warm, winters are fairly cold, we're coming up on summer so just wanted to change the oil with the right viscosity.
Need the best for my money makin machine!
Thanks!
The past owner ran straight 30 weight oil.
I run, 10w-30 amsoil synthetic. It leaks a little bit of oil, but not to where I have to refill it every other day.
Just wanted some opinions on the weight of oil i should use, since it has to idle that like up to 1-3 hrs at a time depending. It doesnt over-heat, but I want to make sure its heavy enough oil. was thinking of putting in 20w-50 synthetic, and a heavier one I would assume would slow down the oil drips. I live in washington state, so the summers are kinda warm, winters are fairly cold, we're coming up on summer so just wanted to change the oil with the right viscosity.
Need the best for my money makin machine!
Thanks!
Senior User
Joined: Mar 2003
Posts: 340
Likes: 1
From: NY
I ran Delvac 15w-40 in my 4.9 for years. I ran it year round, did extensive idling and city driving and ran it for 6-10K mi. The oil pressure allways seemed to be higher and it stopped the slow leak/burning oil slight problem that was there.
Hope that helps.
Hope that helps.
Posting Guru
Joined: Mar 2004
Posts: 1,321
Likes: 2
From: MI
run the correct oil weight for the engine(10W-30/ 5W-30) and change your oil based on hours ran instead of miles (add an hour meter). guessing 100-150 hour between changes depending on miles driven. synthetic oil has a smaller and more consistant structure to it and can sometimes leak where conventional will not.
Lead Driver
Joined: May 2004
Posts: 5,015
Likes: 131
From: Maryville
Yep, and synthetic is thinner than conventional, so 10w 30 syn is not like 10w 30 dyno oil. The 20w 50 syn sounds like a good idea for summer oil since you do a lot of off idle still running, I'd think about an oil cooler and electric fan too.
Thread
Thread Starter
Forum
Replies
Last Post
parkland
General Diesel Discussion
2
Mar 31, 2014 06:06 PM
