Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Oil capacity question.

Old May 15, 2021 | 11:48 AM
  #1  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Oil capacity question.

Hello- I’m new here and own a 1960 mercury Monterey with a 70s~ 460 from an f250.
I had the oil changed yesterday and they put 7 quarts in. Its reading a little high on the dipstick, is this something to worry about?

 
Reply
Old May 15, 2021 | 11:53 AM
  #2  
ranger140892's Avatar
ranger140892
Grumpy goat
Veteran: Army
5 Year Member
Photogenic
Photoriffic
Joined: May 2017
Posts: 3,058
Likes: 594
Club FTE Gold Member
That's more than just a little high. If the oil level is high enough to allow the crankshaft counterweights to contact it, it can aerate the oil in the sump. That will introduce air bubbles, which will be picked up by the oil pump, sent through the oil galleys, which will drop oil pressure.
 
Reply
Old May 15, 2021 | 12:32 PM
  #3  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Originally Posted by ranger140892
That's more than just a little high. If the oil level is high enough to allow the crankshaft counterweights to contact it, it can aerate the oil in the sump. That will introduce air bubbles, which will be picked up by the oil pump, sent through the oil galleys, which will drop oil pressure.

ok so I went back to them and brought up this point and they assured me I’d be fine. They said they added the extra on purpose? I’ve never had any problems with them before so. Idk what to think
 
Reply
Old May 15, 2021 | 12:44 PM
  #4  
smle's Avatar
smle
Fleet Mechanic
10 Year Member
Shutterbug
Liked
Loved
Joined: Apr 2014
Posts: 1,790
Likes: 182
From: Oakland, AR
Club FTE Silver Member

I think I would find an old school mechanic and talk to them. You definitely have too much oil in it. It sounds like that outfit is not the least bit familiar with these older vehicles.
 
Reply
Old May 15, 2021 | 01:25 PM
  #5  
Crop Duster's Avatar
Crop Duster
Logistics Pro
Veteran: Air Force
10 Year Member
Joined: May 2015
Posts: 4,461
Likes: 949
From: Tri Cities, TN
Club FTE Silver Member

You won't have a problem with only one extra quart. It wasn't unusual for Ford to use the same size oil pan with different dipsticks to raise the capacity. Example, the 351C Boss holds 6 qt. the regular 351C's hold 5 qt. No difference in the size of the pans just different dipsticks. Besides the 429 CJ's, SCJ's and PI's held 7 qt and I'm pretty sure the pan was the same size as the passenger car engines..
 
Reply
Old May 15, 2021 | 01:46 PM
  #6  
smle's Avatar
smle
Fleet Mechanic
10 Year Member
Shutterbug
Liked
Loved
Joined: Apr 2014
Posts: 1,790
Likes: 182
From: Oakland, AR
Club FTE Silver Member

Shouldn't that be 5qt. w/filter and 6qt. w/filter?
 
Reply
Old May 15, 2021 | 02:07 PM
  #7  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Originally Posted by smle
Shouldn't that be 5qt. w/filter and 6qt. w/filter?
that’s what I thought. I read some places that they take 7. Idk it’s running well. I don’t know what to think. They’re a reputable mechanic
 
Reply
Old May 15, 2021 | 02:07 PM
  #8  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Originally Posted by Crop Duster
You won't have a problem with only one extra quart. It wasn't unusual for Ford to use the same size oil pan with different dipsticks to raise the capacity. Example, the 351C Boss holds 6 qt. the regular 351C's hold 5 qt. No difference in the size of the pans just different dipsticks. Besides the 429 CJ's, SCJ's and PI's held 7 qt and I'm pretty sure the pan was the same size as the passenger car engines..

so you’d leave it? Think it’ll be ok? (It’s running well)
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old May 15, 2021 | 02:08 PM
  #9  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Originally Posted by smle
I think I would find an old school mechanic and talk to them. You definitely have too much oil in it. It sounds like that outfit is not the least bit familiar with these older vehicles.
they’ve always got older stuff in their garage. So I’m confused lol
 
Reply
Old May 15, 2021 | 03:13 PM
  #10  
smle's Avatar
smle
Fleet Mechanic
10 Year Member
Shutterbug
Liked
Loved
Joined: Apr 2014
Posts: 1,790
Likes: 182
From: Oakland, AR
Club FTE Silver Member

Its running well. Go ahead and drive it, just keep a close eye on the oil level and oil pressure.
 
Reply
Old May 15, 2021 | 03:24 PM
  #11  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Originally Posted by smle
Its running well. Go ahead and drive it, just keep a close eye on the oil level and oil pressure.
will do. Thanks for the reply.
(Like I said, I walked over to the place and asked them about the high level. They said I’d be ok)

im running straight 40 with high zinc, for reference
 
Reply
Old May 15, 2021 | 04:29 PM
  #12  
5851a's Avatar
5851a
Logistics Pro
15 Year Member
Liked
Community Favorite
Joined: Oct 2006
Posts: 4,025
Likes: 890
From: East Central Ia
Where is the drain plug on your oil pan? The trucks are at the rear and if changed to a car pan it will be on the side. Ford used a lot of different dipsticks and dipstick tubes. There should be a part number on the dip stick, the tubes don't have a stamped number. The tube, the stick and the pan need to match. SCJ, PI and later trucks would take 7 because they used oil coolers. Just curious to your combination and I don't have the numbers. Hope ND or F250 can find something for you.
 
Reply
Old May 15, 2021 | 04:58 PM
  #13  
eire49's Avatar
eire49
Thread Starter
|
Mountain Pass
Joined: May 2021
Posts: 105
Likes: 12
Originally Posted by 5851a
Where is the drain plug on your oil pan? The trucks are at the rear and if changed to a car pan it will be on the side. Ford used a lot of different dipsticks and dipstick tubes. There should be a part number on the dip stick, the tubes don't have a stamped number. The tube, the stick and the pan need to match. SCJ, PI and later trucks would take 7 because they used oil coolers. Just curious to your combination and I don't have the numbers. Hope ND or F250 can find something for you.
Its at the left rear side of the pan

 
Reply
Old May 15, 2021 | 06:01 PM
  #14  
matthewq4b's Avatar
matthewq4b
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
Originally Posted by eire49
will do. Thanks for the reply.
(Like I said, I walked over to the place and asked them about the high level. They said I’d be ok)

im running straight 40 with high zinc, for reference
7qts will be fine, if it is too high the engine will use it up. Recommend against the strait 40 weight oil that heavy when cold will delay getting full pressure to bearings and will increase start-up wear a good 5W 40 syn will be a far superior choice.
 
Reply
Old May 15, 2021 | 06:01 PM
  #15  
ranger140892's Avatar
ranger140892
Grumpy goat
Veteran: Army
5 Year Member
Photogenic
Photoriffic
Joined: May 2017
Posts: 3,058
Likes: 594
Club FTE Gold Member
That's more than one quart over filled. Probably two quarts or more. I would not leave it that way. It's too easy to pull the plug and drain a little out. Given that you don't change your own oil, and probably don't have an aftermarket oil pressure gauge either, you'll probably never notice the damage that's occurring. But if the crankshaft is in contact with the oil in the sump, the oil is definitely getting aerated. Every air bubble in the oil, is a space where there's no protection between bearings and journals. How much damage is it causing? I have no idea. But it's more than I would allow.
 
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 05:04 PM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE