Hi guys I have ticking noise it became less when I used molybdenum oil additive but the noise came back . Now I want to add about half quart of Lucas oil stabilizer to the engine next oil change I will be adding 6.5 quart of 10w40 oil and half quart of Lucas oil is . Anyone used it with good results? Some say oil additive may increase oil pressure which may cause more problems and may increase compression too = blowin head gasket?

Thanks.

 

snake oil

 

If it was a beneficial product the major oil producers would have bought it up years ago. In the old days of hydraulic lifters / push-rods / valve adjusting it may have served a purpose. With the modern engine it at best can mask a problem. The better route would be to find out what is causing the noise and repair it.
If it was my engine I would be looking at the Variable Valve Timing Mechanism, timing chain tensioner, cam shaft clearance conditions.
Get yourself a mechanics stethoscope and locate the area of the noise and get back to us for help with tracking it down.

 

Along with previously noted...
Your already going to use a thicker than recommended oil (5/30 is standard). So making it thicker does nothing but create poor oil port flow and these Jags have very tiny oil ports to the cams.

 

i use castrol 0w40, cheap and good in all climates.

Liqui Moly Ceratec is supposedly a real good anti wear additive but pretty pricy.

 

LOS worked great for me years ago w/ a Mitsubishi Diamante that had blow by smoke from weepy valve guide seals. This day & age not sure I'd go that route.

 

I would remove the spark plug covers and use a mechanic's stethoscope and try to identify if it's near one plug or another. Clearances might be out under the cams, but as I think Sean B said to me, you'll need to get into the engine a bit more to sort that.
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Personally, I would keep the oil clean with regular changes and hopefully pick a good time in future to check the clearances and get them sorted.

My understanding is that the VVT needs the oil thin enough to run properly. You might be increasing wear in other places by making it thicker?

 

I will do the primary tensioner and guide soon if the noise not from timing parts then clearance

 

mobile1 before jumping in and changing parts I would do an oil change with a new filter and 0w/30w oil and then take it out for an "Italian tune-up", basically ride her hard and bring her home wet. Then get a stethoscope and start listening for noises.

 

...after all, its Saturday night....lol

 

Well Years ago when engines had a ton of clearence, when they were new, and after 75 to 100 thousand miles,were even looser, Lucas was great. Now a days NO WAY! Engines call for 5w20 or 30, and even as low a 0w.

I know from personal experience that Lucas is to heavy for new engines. We have a 2000 GMC pickup with a 5.3 LS engine. At 20 years old, and almost 250 thousand miles. I was worried cause it was making a little noise, so I added a half quart, of Lucas to the oil, when I changed it. This truck is used as a trash truck, and sits around idling a lot. A couple days after I had change the oil, they brought it to the bus shop, and it was idling, and it tightened up, and Died. I tried to start it, and it would turn about a 1/4 turn when you hit the key. I figured they had blown it up, as they don't treat it very well. I told them to just let it set, and we'd see what happened. After contemplating what had happened,and letting it cool off. I changed the oil, and put 5w30 and no Lucas in it. That was a year ago, and it runs just fine. So No! do Not use Lucas in a new engine!!!

Jack