.. If i can be talked out of that, ill consider 10W-40, though Jag FForum says 20W-50. Here is Why: (Hello All.)
Here is a Factual Update, and ill tune in to watch the thread unfold, as im sure this is an interesting one:
1) "Red Oldsmobile" = Gone.. Hole in Piston. Proof: (If you choose to see a Pic of the Hole in the Piston, click on http://i635.photobucket.com/albums/uu72/jcorbi82/carpist2.jpg and http://i635.photobucket.com/albums/uu72/jcorbi82/CARPIS.jpg TY.) R.I.P. 1991 Calais. (Not related to Oil, i dont think.)
2) I bought a 1985 Jaguar XJ6 4.2L. It is an Inline-6.. and it has a MONSTROUS Oil CAPACITY of 8 or -9- QUARTS!!!
3) The Jaguar has 152,000 Miles, and SAT IN A DRIVEWAY for about ONE YEAR before I bought it; had Old Gas (Needed Fuel Pump and Filter,) Low Trans Fluid, And, of course.. OLD OIL!! it is still in there, but i havent driven it much.
CONCLUSION: I have read on a JAGUAR FORUM with Owners from Around the WORLD (jag-lovers.org) that 20W-50 is the PREFERRED and RECOMMENDED Oil for this car! (One guy uses 10W-40.) Apparently, this 25-year-old Car i have with decent Mileage (pictured in Sig) is a GOOD one!.. My Plan is to use 20W-50 Valvoline MaxLife -Synthetic Blend- in the Summer (MAYBE make a Mix to get it to "15W-45" with 10W-40 and 20W-50 using V.ML SB), and Valvoline Roush Full Synthetic 5W-50 for when Temperates Drop.
The MaxLife Formulation has been good to me.. and the reasons for the 20W-50 are primarily:
1) Jaguar recommends it in anything but Winter, then they recommend 10W-40;
2) This engine is of OLD Design, and likes the Thin Oil;
3) This engine USES "Some Oil" anyways, not a "Sludger," but an "Engine that burns some oil by its design,"
and 4) The engine Sounds, good, Runs Good, Feels Good, and has an Oil pressure gauge, for which it says "40Psi is normal" and "Relief Pressure is 65Psi," so I can keep an ee on things.
Now, im sure SOME will try to say "DONT DO THAT!!!" and some will say "Well if that is what Jaguar and MOST the people on the Jag Forum recommend, do it"... But No better place to ask than HERE!!
OK ill wrap up this post, this IS my new car ive had for a few Weeks.. Thanks fro the Insight, and ill pop back in later to add more info, as Jaguar DOES Recommend the Heavy Oil, like BMW!!!
OK, Hope this wasnt too long.. Thank You for letting me get the Info out.. ill read it during day, and make a much Smaller post this evening. Thank you Kindly - Joseph
Edit: This is the Jaguar I purchased
Ill check back later for replies, Thanks.
Here is a Factual Update, and ill tune in to watch the thread unfold, as im sure this is an interesting one:
1) "Red Oldsmobile" = Gone.. Hole in Piston. Proof: (If you choose to see a Pic of the Hole in the Piston, click on http://i635.photobucket.com/albums/uu72/jcorbi82/carpist2.jpg and http://i635.photobucket.com/albums/uu72/jcorbi82/CARPIS.jpg TY.) R.I.P. 1991 Calais. (Not related to Oil, i dont think.)
2) I bought a 1985 Jaguar XJ6 4.2L. It is an Inline-6.. and it has a MONSTROUS Oil CAPACITY of 8 or -9- QUARTS!!!
3) The Jaguar has 152,000 Miles, and SAT IN A DRIVEWAY for about ONE YEAR before I bought it; had Old Gas (Needed Fuel Pump and Filter,) Low Trans Fluid, And, of course.. OLD OIL!! it is still in there, but i havent driven it much.
CONCLUSION: I have read on a JAGUAR FORUM with Owners from Around the WORLD (jag-lovers.org) that 20W-50 is the PREFERRED and RECOMMENDED Oil for this car! (One guy uses 10W-40.) Apparently, this 25-year-old Car i have with decent Mileage (pictured in Sig) is a GOOD one!.. My Plan is to use 20W-50 Valvoline MaxLife -Synthetic Blend- in the Summer (MAYBE make a Mix to get it to "15W-45" with 10W-40 and 20W-50 using V.ML SB), and Valvoline Roush Full Synthetic 5W-50 for when Temperates Drop.
The MaxLife Formulation has been good to me.. and the reasons for the 20W-50 are primarily:
1) Jaguar recommends it in anything but Winter, then they recommend 10W-40;
2) This engine is of OLD Design, and likes the Thin Oil;
3) This engine USES "Some Oil" anyways, not a "Sludger," but an "Engine that burns some oil by its design,"
and 4) The engine Sounds, good, Runs Good, Feels Good, and has an Oil pressure gauge, for which it says "40Psi is normal" and "Relief Pressure is 65Psi," so I can keep an ee on things.
Now, im sure SOME will try to say "DONT DO THAT!!!" and some will say "Well if that is what Jaguar and MOST the people on the Jag Forum recommend, do it"... But No better place to ask than HERE!!
OK ill wrap up this post, this IS my new car ive had for a few Weeks.. Thanks fro the Insight, and ill pop back in later to add more info, as Jaguar DOES Recommend the Heavy Oil, like BMW!!!
OK, Hope this wasnt too long.. Thank You for letting me get the Info out.. ill read it during day, and make a much Smaller post this evening. Thank you Kindly - Joseph
Edit: This is the Jaguar I purchased
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