Recent content by robert

Local auto show on radio recommends trying a complete flush when you have a shudder. This may solve problem if torque converter has not gone to far.

Would recommend you do an oil analysis for your particular engine and get advice from other owners of the 8.1.

I have a '00 5.3 Silverado. Mobil 1 performs well, and two UOAs indicate it maintains its viscosity of a 30W. Redline would probably outperform Mobil 1. The preferred oil for the 5.3 engine is 5-30 as indicated in your owner's manual. It seems like a thin oil, but my experience is it protects well.

Has anyone used AMSOIL ATF for a long period of time with success? What do you think drain intervals should be? AMSOIL advertises that the ATF will last up to 3 times the life of dino ATF, which most recommend changing NLT 30K. My concern is would AMSOIL be good for 90K? Or do users of AMSOIL...

I used Quaker State straight 30W is a '91 Ford Explorer. I bought the car used with 71K and retired the car with 187K (117K miles on QS 30W)due to transmission and body problems. Engine was beginning to use one-half quart between 3K oil changes at 187K. I live in a relatively warm climate, low...

I have a '00 Z71 with the "infamous" GM tick. However, it does not tick when engine is warm. Not sure we have the same problem, but you may want to try a fuel injection system flush using BG advanced formula. This cleans the air intake system and "Combustion Chambers" where GM says the tick...

TR3 - Thanks. I am using a AC-Delco filter. Will give Pureone try on next change along with Techron. Mobil 1 may be best, but my goal is not extended drain intervals. I run synthetic because Toyotas are "high-heat" engines and I was hopeful syn would maintain better viscosity and prevent...

Jay - I bought an imported engine that had 26K. The engine had been reconditioned with new lifters, valves, and seals. I have driven 27K+. My last UOA was about 1 year (14K miles) ago. At the time I was using Castrol 10-40 dino which revealed good wear and no problems, except the 10-40 has...

Anyone know what is meant by the Flashpoint being "short"? Is it below standard? What causes high insoluble rate besides need of a tuneup as mentioned by Al. Thanks to Al and YZF. (Please note that previous UOA was Castrol 10-40 (dino)which had gone to 30wt within 2K miles. This is a DOHC...

Would appreciate comments on UOA: Engine miles, 53,512 (rebuilt), miles on oil: 3174 City driving, many short trips. Blackstone Univ avg for this type engine in () AL 3 (4) CH 1 (1) IR 6 (8) COP 5 (14) LEAD 10 (5) Tin 0 (2) Moly 73 (55) POTAS 1 (1) BORON 140 (38) SILICON 12 (14) SODIUM 8 (9)...

dragboat - I have a 5.3 with lower end knock (audible if you stand by driver's side wheel well) for about 10-15 seconds upon start-up, hot or cold. Copper was 21 per Blackstone. It's strange that if you restart the engine within 2-3 minutes after turn-off, there is no knock. In your opinion...

luphy - I purchased this truck in March 2000. Ran Quaker State 10-30 for the first 8000 miles and switched to Mobil 1 5W-30 at that time. Mobil 1 has been only oil for last 16K+ miles. I went to Supersyn about March of 2002 when it first came out. Oil was in engine for 2 months, 11 days. (2nd...

Patman - This was first analysis on this truck, no other data for comparison. [ August 18, 2002, 01:26 PM: Message edited by: robert ]

Ted - I understand you to say AMSOIL 0W-30 could be the best oil for my application? Thanks!

Miles on oil: 1820 Miles on truck: 23850 No make-up oil added. Truck is only driven average 3 times a week, average 150 miles per week, 70% highway, 30% city. Weather: 93-96 degree high 2000 Chevy Silverado AL 2 Chro 0 Iron 4 Copper 21 Lead 2 Tin 0 Moly 64 Potassium 1 Boron 147 Silicon 6...