Hi, Just bought 1994 Grand Marquis. Rides nice, motor purrs. It has 138,000 miles on it. Wondering what would be the ideal motor oil for it. Some oil change places advertise, "Hi mileage oil", I checked with them and it's a 10w-30w oil. Would that be OK. I thought maybe a heavier oil should be used, at least 10w-40w. What are your suggestions? Thanks, Ed
 |
-
-
Hi Ed,
Welcome to the site. I wouldn't think you'd need to go with 10w-40 oil. The early 4.6's that our NC Highway Patrol used popped oil filters when using 15w-40. I believe these early engines used 5w-30. My 03 Mustang Mach 1 is a 4.6 DOHC and Ford spec's 5w-20 for it. Think the previous owner used Mobil One in it so that's all I've ever used in it. Welcome to the site!! Guess you have what all these guys call an "Aero". All of my Panthers are 5.8L (351W) "boxes". Stan -
5w-20 do not use 10w-40 in a 4.6.2020 Volvo XC90 T6 Momentum (Ice White / Blonde)
2022 Ram 1500 4x4 5.7 Etorque, Built to Serve Edition, (Granite Crystal / Black)
Past Panthers
1989 Grand Marquis LS (Cabernet/Grey), 1989 Lincoln Town Car SS (White/Blue), 2004 Mercury Grand Marquis Ultimate (White/Black)
Originally posted by Lincolnmania
if its got tits or tires it's bound to give you troubleComment
-
Thanks guys for the info. Even tho it's a 20 year old car, it's still new compared to my other car, a 47 Plymouth. I use Rotlla T 15w-40 oil, which has zinc. I guess the more modern, later cars, didn't need zinc as much as the older ones. But, I'm curious, what would happen if I put the Rotell T in the 94 Marquis? EdComment
-
See my first response.............15W-40 is was tried in the early 4.6 equipped Fords and they blew the oil filter cans off. From this experience, I'd say you'd have a "lot of oil pressure" !!Comment
-
if you hear constant tapping with 5w20, switch to 5w30. (this probably won't be an issue)
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
Originally posted by gadget73
... and it should all work like magic and unicorns and stuff.
Originally posted by dmccaig
Overhead, some poor bastards are flying in airplanes.Comment
-
I can believe this. I have seen the gauge in my '92 approach 100 psi when cold (I got on it kinda hard though). That's with 5W-30.Originally posted by P72Crazy View Post1990 MGM: $50 E7 heads, HO cam, Holley SysteMAX lower intake, HO upper intake with an Explorer TB. LSC ECM. Lincoln logs into stock dual exhaust. K&N drop in air filter. Wide ratio AOD, 2400 converter with a 3.08 one tire fire out back. Car is less slow now. Then there's the '92 Beater. Dual 2.25" exhaust with shiny tips. Rumbles nice. Super slow. Burns oil too.Comment
-
I use Max Life. Walmart's version of it works good too. It's for cars with more than 75,000 miles.89 CV LX 225/60 x 16 tires, CC819 rear springs, Front & rear sway bar, trans & PS cooler from 90 cop car. KYB shocks, F-150 on rear. Dual Exhaust w/ H pipe. Dark brown door panels, carpet, steering wheel, trim parts from a 87 Mer GM. Power front buckets from 96 Jeep Cherokee. LED'S front & rear. 3G Alt from a 97 Taurus wagon 3.0. Electric fan. Rear axle from a 97 PI 3.27 with disk brakes. Headlight relays.Comment
Comment