Synthetic

[Ape]

I need to do an oil change, one of the many winterize/fuel economy projects..

I was told that some older cars have problems with it, which really didnt make to much sense to me, so I wanted to know if there would be any problems?

I plan to do it this weekend and want to get a bottle of the cleaner you run through to get rid of some grime.. than probably go with Mobile 1 or something.. Any real synthetic brands you guys reccomend? Im also planning on 5w30.

sorry for the r00kie thread

[Lincolnmania]

dont do it! most of the time when you run synthetic in an older engine new oil leaks will develop...........start out with synthetic blend first

[Ape]

oh really? wow, I thought the guy was on crack when he said that..

so a synthetic blend, will I still get trouble from that? should I stick to the regular stuff?

Any brand reccomendations..

and dammit too.

[Stu]

Why 5W?

[sploer4.0]

Why 5W?

for colder weather duh george!!!

[Ape]

Thats what I figured, its a cooolllld long winter way up here.

I still dont understand why it would cause more leaks, I thought that would mainly be the viscosity.

[86GmLsCoupe]

When I got my car, it had regular 10w30. I switched it to Castrol Syntech Blend and did a Lucas treatment to help with leaks (was told it can help swell the gaskets). After a few changes i switched to Mobil One 10w30 with an occasional Lucas treatment. Leaks are better than ever

1986 Grand Marquis LS coupe [/url] http://photos.yahoo.com/leo76830

[Stu]

Synthetic keeps your engine cleaner--which could clean away sludge that is holding back an oil leak or two.

[Blaze86Vic]

Do not do 5W. 5W is too thin for a push rod block. Especialy one at the age of yours. Do 10W in winter and you could even go to 15w in the summer.

[sploer4.0]

I still dont understand why it would cause more leaks, I thought that would mainly be the viscosity.

the only way i can think that it would is cus teh molecules of synthetic oil are smaller and get in to smaller holes that regular oil

[89LincolnTWNcar]

I'm going to break my rebuilt engine in on regular 10W40 oil, then go synthetic.

[Lincolnmania]

i've been running my lincoln on 10w30 and ocasionally 10w30 synthetic blend year round..............couldnt do it on the old lopo........i was running 15w40 and it was burning a qt every 400 mi.......and yes the pcv screen was good lol

[Ape]

Ok, so its looking like a 10w30 synthetic blend to start off?

Is this lucus treatment something I can run through the engine in an oil change? may as well give it a shot.

[gadget73]

I've been meaning to switch over to synthetic. I think I'm finally out of oil so next change will go fake oil. Actually Wal Mart oil is pretty darn decent, considering the price, but if you want really good, Mobil 1, Amsoil, Royal Purple are all excellent, but not cheap. If you want some more info on oil, have a look at this article written by a guy who actually does this for a living. http://www.lincolnsonline.com/article105.html

The guy has owned since new a Starsky and Hutch Torino, a 429 powered 71 Mach 1 and a couple Mark VII.

[Archangel]

I run 5w30 Mobil 1, and it doesn't seem to lose level much - for the last 3500 miles I've added a quart and a half, but that's all. "Too thin for an old pushrod" means that valvetrain ain't gonna get proper lubrication, right?