Oil Analysis
1 - 4 of 4 Posts
I had a diesel truck F350 (sorry Chevrolet) and ran Amsoil in it had it tested every 5k miles. They would sell you a kit for like $25.00 that had a little bottle and box with pre-paid shipping and testing.Fill the bottle and send it off. In about two weeks you get a report about the breakdown of your oil and how it compares to that oil new. But what was cool along the top of the report was pass or fail. The set up I had was a duel external oil filter setup that along with the like 10 qts of oil was like $600.00 But when I sold the truck with 60K miles of towing and city driving the oil still passed with flying colors. So $600 up front or $100 ever 3-5k I think it was worth it.
I know that does not answer your question directly. On a diesel truck I swear by Amsoil & testing is great. On my 1970 SS396 I run Royal Purple HPS and I like to change the oil. I touch it and feel for contaminants. I cut the filter and check there for anything. On my 06 Fusion I take it to a shop and let them worry about it. For me it comes down to the usage of the car, and how you drive it.
I know that does not answer your question directly. On a diesel truck I swear by Amsoil & testing is great. On my 1970 SS396 I run Royal Purple HPS and I like to change the oil. I touch it and feel for contaminants. I cut the filter and check there for anything. On my 06 Fusion I take it to a shop and let them worry about it. For me it comes down to the usage of the car, and how you drive it.
Joined
·
6,704 Posts
Check this post out
OIL http://www.chevelles.com/forums/showthread.php?t=398956
Amsoil is listed 5th and 20th on the list in Thread # 11
donot know if is the one you use Tim.
OIL http://www.chevelles.com/forums/showthread.php?t=398956
Amsoil is listed 5th and 20th on the list in Thread # 11
donot know if is the one you use Tim.
Joined
·
8,670 Posts
I've been sampling oil for decades. Not often--when I buy a vehicle, and for the first few oil changes afterward--and then once in awhile after that.
Oil lasts a LOT longer than most folks give it credit for, IF the engine is in good condition. My Trailblazer has an oil life monitor that typically says to change oil at around 13,000 miles. My oil sampling shows that to be conservative. I can go longer than 13,000 based on the sample report. I've got a '92 and '93 Lumina 3.4, those have gone 6K between changes, and again, based on oil sample reports, I am going to stretch that longer, too.
Feedback fuel injection and overdrive transmissions make a huge difference in oil life, as does unleaded gasoline. No promises on "hot-rod" oil life due to higher revs and more fuel dilution of the oil based on overly-rich mixtures.
Last time I bought oil sample kits, it was from the Detroit Diesel dealer. At that time, they were about $15 each; but I bought a dozen and it was years ago. No doubt they're more expensive now. I have also used Cummins oil sample kits, and the local Cenex used to sell them, too.
Oil lasts a LOT longer than most folks give it credit for, IF the engine is in good condition. My Trailblazer has an oil life monitor that typically says to change oil at around 13,000 miles. My oil sampling shows that to be conservative. I can go longer than 13,000 based on the sample report. I've got a '92 and '93 Lumina 3.4, those have gone 6K between changes, and again, based on oil sample reports, I am going to stretch that longer, too.
Feedback fuel injection and overdrive transmissions make a huge difference in oil life, as does unleaded gasoline. No promises on "hot-rod" oil life due to higher revs and more fuel dilution of the oil based on overly-rich mixtures.
Last time I bought oil sample kits, it was from the Detroit Diesel dealer. At that time, they were about $15 each; but I bought a dozen and it was years ago. No doubt they're more expensive now. I have also used Cummins oil sample kits, and the local Cenex used to sell them, too.
1 - 4 of 4 Posts
