1995 should be a GEN V, and should have flat tappets. But, that was around the changeover to gen VI i believe. Post a pic of your timing chain cover.

Whoever did the entire top end for you should know. Or look at your reciepts. Roller lifters are more expensive than flat tappets by quite a bit!

I just stopped at "Wally Mart" and the 15W40 they sell here is in 9.5 litre jugs(about 10quarts) its "Rotella T"
I dont see much else on the label, will this work and/or what or where should I look on the label?

THANKS!
Michael

Boat is at cottage, but, Thanks! What will be different about timing cover? I will look when I go next week.

Fixx
 

stamped steel,gen v cast alunimum with a smoothe face,gen VI,roller cam..

Thanks! I will have a look next week, then get oil, I assume if its a flat tappet cam I shouldnt use Rotella? Unless I use the additive as well?

A few minutes of reading here and you will have all your answers.

http://www.shell.com/home/Framework?...ucts_home.html

http://www.deloperformance.com/produ...FUa8KgodMEETFA

http://www.mobil.us/USA-English-LCW/...aspx?WT.srch=1

I sent Hydrocruiser a PM recently about the Rotella, Delo, and Delvac
diesel oils sold by Wal-Mart. He said they are all extremely similar and
equally excellent. Prices range from $9.50 to $12.00 per gallon. I use
Rotella T 15W-40 conventional now but would not hesitate to use
Delo or Delvac if they go on sale!

I called the number on the Rotella container about a month ago and asked specifically about the zinc additive. The person told me the zinc additive has been removed from Rotella T and Rotella products. Valvoline VR-1 is the most available oil that still has zinc additive, it's in a silver bottle not white. Straight 40 is what I use in the naturally aspirated marine engines, 50 in supercharged. Diesel engines do not have high spring pressures on the lifters due to the low rpm, they really dont need the zinc. Hope this is helpful.

so why not just run mobile one (or your favorite synthetic) and put zddp additive in it?

Are you a chemist? If one was to add too much Zinc, it will cause the oil to foam, and you lose all protection of the oil. You should NEVER add anything to any oil, PERIOD!

For what its worth I use rotella diesel oil in my ford diesel and my boat.