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Aug 8, 2006 | 07:43 PM

Mater64

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Fluids

My dad gave me a 64 F-100 a couple weeks ago. I've noticed that I may need to add fluids. I want to keep my truck in the best shape possible. The truck has about 70,000 original miles. Both engine and tranny are original. I plan on using 5w-30 in the motor and 80w-90 in the tranny. Would these fluids be ok? Would something else be better in either? Also what brands would you suggest I use?

Mater

Aug 9, 2006 | 01:33 AM

daveengelson

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From: Boulder Creek, Ca

Mater,

Have the T18 (4speed) and use SAE 90. Read somewhere 90w if prevailing temp. is above 10 degrees, and 80 if below. I also use SAE 90 in rear axle. If live in temp. below 25 degrees then 80w would be preferred. If you were to go the the 'lubrication forum' where members are knowledgeable in the chemical breakdown of fluids, not sure if there would be a consensus on brand or grade lubricant to use. I use 10w-30 in 65 F100 and find it flows little better in cooler temps. 5w-30 would probably flow little better, although read if using 5w want to avoid speeds above 65mph for sustained periods of time. Automatic transmission fluid "type F" is used in power steering units. Stay with 3 Dot brake fluid, unless you upgrade entire brake system. If you have oil bath air cleaner, use 30w above 32degrees, and 20w below. Hopefully, other members will provide additional info., and or opinions.

dave

Aug 12, 2006 | 10:33 AM

daveengelson

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From: Boulder Creek, Ca

I was interested in suggestions on break-in oil for recently installed rebuild. While browsing the 'lubrication' forum this a.m. came across post where member's recommended using oil with zinc additive. Apparently, many of the off the shelf motor oils had the zinc additive either removed or reduced because it was found the zinc was not compatible with the sensor's on later model engines, but important ingredient for older model engines. There is a link with additional comments on topic. Anyhow, food for thought. Perhaps topic will generate discussion from knowledgeable member's in this forum, and then again, perhaps not. http://www.ford-trucks.com/forums/51...h-rebuild.html

dave

Aug 12, 2006 | 01:49 PM

Mater64

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Thanks for the info I'll check it out very soon.

Mater

Aug 12, 2006 | 02:04 PM

daveengelson

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From: Boulder Creek, Ca

When you have time, must have put over 250,000 miles before the rebuild and used just about any oil available.

dave

Aug 13, 2006 | 03:02 AM

tbm3fan

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Joined: Jul 2006

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From: Concord, CA

Many oils had most of their zinc removed around 2004 since it was not needed for roller tappet engines nor catalytic convertors. However there is plenty of antidotal evidence that the lack of zinc is the reason for flat tappet cams wearing out quickly in recent years in new rebuilds. The only motor oil off the shelf with zinc seems to be Valvoline 20-50W racing oil and then Shells truck oil. One could also stop at a GM dealer and get their EOS additive. Since I change my oils once a year I just use the Valvoline as it is easier and the extra $1 per quart is no big deal for 20 quarts during the year for the 4 cars.