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1966 Ford 289 Oil Analysis #4459254
07/14/17 12:55 PM
07/14/17 12:55 PM
Joined: Apr 2017
Posts: 101
Michigan
Building3 Offline OP
Building3  Offline OP
Joined: Apr 2017
Posts: 101
Michigan
I have a 1966 Ford 289 with about 25,000 miles. Obviously it must have sat for long periods of time. I do know that in the previous ten years before I bought it, it was only driven for short trips. 2-5 miles at a time. I have had it for a short period of time but after buying it I put in Valvoline VR1 Conventional Racing Oil 10w-30 after asking many people with old cars. I use ethanol free gasoline 90 octane. The oil analysis was fine except for the lead. Last year it was 630 and this year 403. The engine does not smoke or make any unusual noises and it does not use oil. The oil pressure gauge works fine and shows a good oil pressure. (No numbers, but right in the middle of the scale.) Why do you think the lead numbers are so high? Possibly the previous owners used leaded fuel or a lead additive in the fuel? I guess it could be the bearings but like I said, the pressure seems fine. Any thoughts would be helpful. Thank you.

Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459265
07/14/17 01:04 PM
07/14/17 01:04 PM
Joined: Jul 2008
Posts: 1,090
British Columbia, Canada
ecotourist Offline
ecotourist  Offline
Joined: Jul 2008
Posts: 1,090
British Columbia, Canada
The car spent most of its life using leaded fuel. The falling lead number is consistent with residual lead coming out of the engine as you use it.


2000 BMW 528i 5MT
2007 Honda Accord EX-L 4Door V6 6MT
Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459289
07/14/17 01:29 PM
07/14/17 01:29 PM
Joined: Aug 2013
Posts: 2,531
Central Maryland
HangFire Offline
HangFire  Offline
Joined: Aug 2013
Posts: 2,531
Central Maryland
What ecotourist said. The lead count is not a problem.


Various musings: http://hangfire.net
Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459291
07/14/17 01:29 PM
07/14/17 01:29 PM
Joined: Oct 2015
Posts: 2,660
Balearic Islands , Spain
FordCapriDriver Offline
FordCapriDriver  Offline
Joined: Oct 2015
Posts: 2,660
Balearic Islands , Spain
That engine will have plenty of lead in it after years of running on leaded gas, don't worry, and the VR1 10W-30 is an excellent choice.


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.

1988 Ford Escort Mk4 Xr3i Cabrio, - Shell Rimula R4X 15W-40, w/ 30% Helix 3 20W-50.
Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459317
07/14/17 01:52 PM
07/14/17 01:52 PM
Joined: Jun 2003
Posts: 17,370
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,370
Deplorable in apple valley, ca
The lead from the gas will stay in it forever.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459340
07/14/17 02:18 PM
07/14/17 02:18 PM
Joined: Sep 2015
Posts: 3,869
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,869
Connecticut
The lead in the fuel back in the day used to help cool/lubricate the exhaust valves. What serves that function in today's lead-free fuel?


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: 1966 Ford 289 Oil Analysis [Re: Chris142] #4459379
07/14/17 02:59 PM
07/14/17 02:59 PM
Joined: Apr 2017
Posts: 101
Michigan
Building3 Offline OP
Building3  Offline OP
Joined: Apr 2017
Posts: 101
Michigan
Thanks for the quick input. That is a relief. Now to go drive it!

Re: 1966 Ford 289 Oil Analysis [Re: 69GTX] #4459391
07/14/17 03:06 PM
07/14/17 03:06 PM
Joined: Apr 2017
Posts: 101
Michigan
Building3 Offline OP
Building3  Offline OP
Joined: Apr 2017
Posts: 101
Michigan
No Lead: I don't plan to really push the car very hard. No racing, no towing, etc. So I should be ok especially with the limited miles that I will put on the car. Maybe 500 miles per year at most. I am old enough to remember the American "white gas." American sold high octane no-lead in the 1960's at least on the east coast. The older fellows with the Corvettes and GTO's and other muscle cars used to fill up all the time with that gasoline and I don't remember them having problems. Back to today, I checked with a lot of local guys with cars that used to run on leaded fuel; now they all use unleaded with no problems. Of course, like me, the mileage is limited.

Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459392
07/14/17 03:07 PM
07/14/17 03:07 PM
Joined: Oct 2011
Posts: 497
maple ridge, bc
2004tdigls Offline
2004tdigls  Offline
Joined: Oct 2011
Posts: 497
maple ridge, bc

Last edited by 2004tdigls; 07/14/17 03:08 PM.
Re: 1966 Ford 289 Oil Analysis [Re: 69GTX] #4459423
07/14/17 03:39 PM
07/14/17 03:39 PM
Joined: Dec 2016
Posts: 6,262
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,262
Waco, TX
Originally Posted By: 69GTX
The lead in the fuel back in the day used to help cool/lubricate the exhaust valves. What serves that function in today's lead-free fuel?


Nothing in today's fuel serves that function.

Hardened exhaust seats and better valves did away with the need for lead lubricated exhaust seats.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459427
07/14/17 03:41 PM
07/14/17 03:41 PM
Joined: Dec 2016
Posts: 6,262
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,262
Waco, TX
An older engine without hardened seats will last a long time if it's never driven very hard.

Now, truck engines are a different story. When leaded gas went away in 1992 or so, all of our 1-1/2 ton & larger trucks sunk the exhaust valve seats pretty quickly.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459491
07/14/17 04:54 PM
07/14/17 04:54 PM
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
jorton Offline
jorton  Offline
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
In the late 70's I had a 67. Something rubbed a hole in a power steering hose. The shop replaced the hose and the cry pump.


"If everything seems under control, you're just not going fast enough."
- Mario Andretti


Re: 1966 Ford 289 Oil Analysis [Re: Building3] #4459542
07/14/17 06:10 PM
07/14/17 06:10 PM
Joined: Dec 2002
Posts: 4,154
The Garden State
Whimsey Offline
Whimsey  Offline
Joined: Dec 2002
Posts: 4,154
The Garden State
Back in the early 70's I drove a very nice full size 1966 Custom 500 with the 289 engine. It was actually a very nice car with good power, comfortable, roomy, decent mpg. However, the 4 wheel drum brakes were scary compared to today's disc brakes crzy .

Whimsey

Re: 1966 Ford 289 Oil Analysis [Re: 69GTX] #4459572
07/14/17 06:54 PM
07/14/17 06:54 PM
Joined: May 2010
Posts: 9,063
North Carolina
spasm3 Offline
spasm3  Offline
Joined: May 2010
Posts: 9,063
North Carolina
Originally Posted By: 69GTX
The lead in the fuel back in the day used to help cool/lubricate the exhaust valves. What serves that function in today's lead-free fuel?


Nothing in the fuel does now. Modern engines use hardened valve seats, like stellite.

https://en.wikipedia.org/wiki/Stellite

Last edited by spasm3; 07/14/17 06:56 PM.

13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: 1966 Ford 289 Oil Analysis [Re: Linctex] #4459630
07/14/17 08:26 PM
07/14/17 08:26 PM
Joined: Mar 2016
Posts: 1,425
Western S.C. since 1996
CR94 Offline
CR94  Offline
Joined: Mar 2016
Posts: 1,425
Western S.C. since 1996
Originally Posted By: Linctex
An older engine without hardened seats will last a long time if it's never driven very hard.

Now, truck engines are a different story. When leaded gas went away in 1992 or so, all of our 1-1/2 ton & larger trucks sunk the exhaust valve seats pretty quickly.
That's believable. Back when leaded was going away, there was an article in the SAE magazine on that issue. The quick synopsis is that old engines without hardened seats need to stay under 3000 RPM when running unleaded fuel.


2011 Toyota Prius now at 92K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
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