TERRor
NAXJA Forum User
- Location
- San Antonio, Tx
A couple of weeks ago I bought a 1997 XJ w/ 4.0 & AW4 with 256K on the odometer. 98% of it was highway miles. Is it safe to run Synthetic or Synthetic blend oil?
A couple of weeks ago I bought a 1997 XJ w/ 4.0 & AW4 with 256K on the odometer. 98% of it was highway miles. Is it safe to run Synthetic or Synthetic blend oil?
Another thing I read the other day at work in a lube manual. It said that synthetics are not compatable with RTV.
That may be the problems people have running synthetic.
just read this from amsoil.
Is it true that installing AMSOIL or other synthetic oils will cause my engine to leak oil?
Answer: In modern vehicles, there is no risk of AMSOIL motor oil leaking. In fact, AMSOIL motor oil is fully compatible with modern seal materials. It is properly formulated to condition seals, keeping them pliable to prevent leakage.
so with that being said... uncc i think you just had a gremlin and it happened at the same time.
i have a 2000 XJ with 120K miles and i run royal purple full synthetic 10w-40 with a royal purple filter no leaks or problems at all. it actually quieted down what i think is lifter knock
i say going to synthetic is fine as long as you dont mind spending 60 dollars an oil change =/
i say going to synthetic is fine as long as you dont mind spending 60 dollars an oil change =/
While it may be compatible with modern seal materials, I still believe that the condition of your seals prior to switching has all to do it if it's going to leak. If your seals are worn out and there is some sludge build up that's preventing your seals from leaking with conventional oil being used, then absolutely switching to synthetic will cause leaks. This is because the synthetic properties break down the sludge build up inside the motor.
x2. Mine had over 150k when I got it and small leaks. Engine is dirty but rarely saw a drop. I started blending in synthetic and when I got to mostly synthetic it started leaking worse. I've gone back to regular and it's slowed down some. Synthetic has 2 things against it when it comes to leaks: it cleans up gunk and it's thinner than regular. So it clears out the natural "stop leak" and it'll flow quicker than regular dyno juice. I like the synthetic but on this leaky motor I'll just change the oil more often. How much better is it to run synthetic for 10k vs. regular for 5k, anyways?
If I get a new motor I'll run synthetic.
Where are you getting WIX filters for $3.50? I pay around $8.00 for mine,but I also use the 51515 (longer filter,same for FORD).To rich for my blood. $20-$25 for Mobil 1 at Walmart and $3.50 for a WIX filter.
Sorry, you are correct. I ordered mine from rockauto and it WAS just over $8. I was used to running Frams or Wallyworld cheapos, but recently changed after reading more info on forum. :doh:Where are you getting WIX filters for $3.50? I pay around $8.00 for mine,but I also use the 51515 (longer filter,same for FORD).