2000 Trooper Oil Usage and Piston Rings

[LEM]

Originally Posted by wb4lbg

I put the CD2 in my '99 at the last oil change. I was checking the oil everyday at first and liking what I saw (no change in the level). But then I started checking it once a week and was seeing the level drop.

I'm now at about 1000 miles since adding the CD2 and this morning I showed the level down a little less than half a quart. This might be a slight improvement over my historical usage but since all of my miles lately have been around town it's hard to tell.

I'll keep you posted.

Right before driving up to PA for Thanksgiving, I topped off the oil and added a bottle of CD2. I drove about 510 miles and had to add 1.5 quarts of oil. This is the second bottle of CD2 I've used with no marked improvement. I'm planning to drive to Florida over Christmas and will put about 1600 miles on the vehicle; before we leave I plan to do at least two cylinder soaks on two separate weekends. I'll carefully track the oil consumption and let you all know if there's any improvement.

I can't wait until I can replace this thing with a Toyota Sequoia

[rodeo02]

Larry, has the oil consumption been reduced at all after your last cylinder soak (running on plain oil, no adds)?
Thanks,
Joel

[LEM]

Originally Posted by rodeo02

Larry, has the oil consumption been reduced at all after your last cylinder soak (running on plain oil, no adds)?
Thanks,
Joel

Joel,
At first there seemed to be a slight improvement: 1 quart of oil~750 miles. This latest trip didn't exhibit any real improvement however. I will try additional soaks to see if they help. Any other additives that you've found helpful?

Thanks,
Larry

[rodeo02]

I'd want to use the strongest liquid cleaner/solvent I could. You just blow it out of the cylinders anyway. As long as is donest have silicone. Liquid WD40 is one of the best 'cleaners' I know of, but I think it has silicone in it, as that will destroy O2 sensors on contact. I've been using occasional fuel power and lube control treatments in my 2002 since it was basically new. It is a bit spendy to mail-order a gallon of each. I think it was like $70 total last time I orderd, but it lasts a long time in moderation. LC is an awesome cleaner. http://www.lubecontrol.com/

G/luck
Joel

[wb4lbg]

Originally Posted by wb4lbg

I put the CD2 in my '99 at the last oil change. I was checking the oil everyday at first and liking what I saw (no change in the level). But then I started checking it once a week and was seeing the level drop.

I'm now at about 1000 miles since adding the CD2 and this morning I showed the level down a little less than half a quart. This might be a slight improvement over my historical usage but since all of my miles lately have been around town it's hard to tell.

I'll keep you posted.

Changed the oil last night at 1995 miles. I wouldn't say the oil looked any dirtier than normal at 3-4K miles but it's hard to say. There wasn't much 'grit' in the bucket which was an improvement over normal.

In the course of 1995 miles, I had to add one quart of oil. This 'seems' to be an improvement over my historical oil usage but most of my historical experience has been with 80-90% of the miles at 70+ MPH. I've been working closer to home lately and only get above 70 about 20% of the time.

Another complication could be that I used 10W-40 instead of 10W-30 on the last change so maybe the higher visocosity helped.

It's cold here now so I went back to 10W-30 on this change. I plan to stop and get another bottle of CD2 on the way home tonight and will add it before heading out in the morning.

At this point I am "cautiously optimistic".

Should I change my oil again at 2K miles or go back to my normal interval of 3-4K?

[rodeo02]

Originally Posted by wb4lbg

..Should I change my oil again at 2K miles or go back to my normal interval of 3-4K?

I'd do what ever the bottle of CD2 says. Dunno if that stuff is safe to keep in the sump for a full OCI or not.

G/luck
Joel

[wb4lbg]

Originally Posted by rodeo02

I'd do what ever the bottle of CD2 says. Dunno if that stuff is safe to keep in the sump for a full OCI or not.

G/luck
Joel

Following the label instuctions (2K) is probably the best idea but I was wondering what others' experience had been. I'm pretty sure I read elsewhere in this forum about folks leaving it in longer.

I don't know that there's any cumulative benefit to using it on back to back oil changes so maybe I'll leave it out on this cycle and see what the consumption is. That way I don't have to be lying on the cold concrete in February...

[mlingk]

I don't think it's a problem leaving it in, but as you top off your oil due to consuption, it will dilute the CD2 and its effectiveness will be reduced as you go.

[marcre]

I have some CD2 here and willk try it later. The stuff I have is in the yellow bottle and it says detergent on it. I assume it is safe to go further than 2k with it because it is an oil extender. I think all it is, is more of what's all ready in the oil. I would maybe add it well into the oil change.

Marc

[tinytrixie]

Our 99 Trooper has 140k and had started to use more oil between changes, I was having to add about 1-1/2 Qts every 3k. I switched to Mobil1 5w40 diesel oil (Truck & Suv) and after several changes I have seen the consumption start to drop. Diesel oil has a much higher detergent level than reg oil and has additives to keep soot etc in suspension, so maybe it doesn't settle out as easily. Will keep you guys posted.