Have '99 Silverado 2500 I bought new from dealer. I am currently coming up on 40K miles. Nobody else drives it, and between it, the Buick, motorcycle and rental cars when travelling out of town, it just doesn't get used much. I was planning to trade it at 15 years (this September) but personal economy says no.
Always did the old-school 3K OCI, sometimes stretched to 4K until I started driving it less when gas hit $3.50, now do annual OCI because of short trips and concern of condensation. Always serviced at local shop except for 2009 oil change with Amsoil, which I really loved. Never had such easy cold starts (0 deg F in winter) in my life. At last oil change this spring, I had them put in the (recommended) BG MOA. A couple weeks later I noticed the oil pressure was trending somewhat higher than usual. For 13 years, always fluctuated around 40 PSI at idle, then higher with higher RPM. Now well over 40 (close to 60) and nearly 80 on highway acceleration. Looked at service slip, and noticed they charged for 6 quarts oil plus 1 quart of BG MOA. Checked dipstick, and it was somewhat above the full mark. Is this a dangerous overfill?
After debating the merits, and looking at a lot of articles here, I decided to do my own change. Put in Super Tech 5w30 with a P1 filter. Got very particular to fill precisely to full mark, nothing more. Pressure now looks a bit more normal but still a little higher than before, but since I know it's not overfilled, I'm not worried.
Here is a list of things I have done in the last couple months on warm days: Change fluids in front and rear differential (M1 75w90), changed transfer case fluid(Castrol Dex III), above mentioned oil change. Changed power steering cooler after catastrophic failure in driveway.
My plans include transmission drain, filter change and fill and coolant flush, but not until weather breaks.
I think of doing a brake fluid change but the rust on the bleeders (if I'm looking at the right things) is scary. I live in the rust belt, and have had 4 brake lines changed due to bursting through the rust. Happily, it happened in the shop when getting e-brake cable changed. Is there a preferred method of brake bleeding/flushing on this truck? Can I do it myself or should I let the shop do this?
Sorry about long post. Thanks (in advance) for your help!
Always did the old-school 3K OCI, sometimes stretched to 4K until I started driving it less when gas hit $3.50, now do annual OCI because of short trips and concern of condensation. Always serviced at local shop except for 2009 oil change with Amsoil, which I really loved. Never had such easy cold starts (0 deg F in winter) in my life. At last oil change this spring, I had them put in the (recommended) BG MOA. A couple weeks later I noticed the oil pressure was trending somewhat higher than usual. For 13 years, always fluctuated around 40 PSI at idle, then higher with higher RPM. Now well over 40 (close to 60) and nearly 80 on highway acceleration. Looked at service slip, and noticed they charged for 6 quarts oil plus 1 quart of BG MOA. Checked dipstick, and it was somewhat above the full mark. Is this a dangerous overfill?
After debating the merits, and looking at a lot of articles here, I decided to do my own change. Put in Super Tech 5w30 with a P1 filter. Got very particular to fill precisely to full mark, nothing more. Pressure now looks a bit more normal but still a little higher than before, but since I know it's not overfilled, I'm not worried.
Here is a list of things I have done in the last couple months on warm days: Change fluids in front and rear differential (M1 75w90), changed transfer case fluid(Castrol Dex III), above mentioned oil change. Changed power steering cooler after catastrophic failure in driveway.
My plans include transmission drain, filter change and fill and coolant flush, but not until weather breaks.
I think of doing a brake fluid change but the rust on the bleeders (if I'm looking at the right things) is scary. I live in the rust belt, and have had 4 brake lines changed due to bursting through the rust. Happily, it happened in the shop when getting e-brake cable changed. Is there a preferred method of brake bleeding/flushing on this truck? Can I do it myself or should I let the shop do this?
Sorry about long post. Thanks (in advance) for your help!
