Recent content by pjf

For the past year, I have been using MicroGreen filters and changing the oil and filter every 3,000 miles. The filters are direct replacements for your OEM filter and require no additional installation steps. When ordered from Amazon or from the manufacturer, shipping is free although the...

Yes, a 1A or a 1B rating indicates a "yellow-metal friendly" transmission oil. An oil can be trusted to be "yellow-metal friendly" if it adheres to GL-4 standards. On the other hand, a GL-5 oil has to be tested to ensure that it passes the ASTM D-130 copper corrosion test if you want to use it...

Below are 5 oil analysis reports of G-Oil from: (1) Petroleum Quality Institute of America (VOA) (2a) Wear Check (April VOA) (2b) Wear Check (May VOA) (3) Wear Check (Oct UOA - Overheated Engine) (4) Wear Check (Nov UOA) G-Oil VOA's have been controversial. The PQIA virgin oil analysis (sample...

Thanks for all of your comments. The overheated oil and filter have been replaced with new G-Oil and a new MicroGreen filter. I'm sending a sample of the overheated oil for analysis and will post the results in a few weeks.

Originally Posted By: JHZR2 Id usually say yes, but was it hot or pegged at max? Did you get "smoke" water vapor coming from the cooling system? was there any water left in there? I might end the OCI early, but not necessarily change it out immediately. While this was an issue with grp I and...

Originally Posted By: RamFan ...you might want to drain a quart and put in a fresh quart and get a uoa on what you drained. Would be kind of interesting to see what changes if any occurred with the oil. Good idea! I'll submit the overheated oil for UOA. I'm prepared to replace both the G-Oil...

I have a 1989 Suzuki Sidekick with a re-manufactured 1.6-liter, 8-valve engine. The AAA service station found no head warping and no obvious engine damage. They checked the engine oil and found no water in the oil that would indicate gasket damage. I just bought a 5-quart jug of G-Oil an hour...

After driving about 10 miles, I heard a tapping sound while accelerating up a hill, immediately looked at the gauges and turned off the engine. The oil in my engine is 5W30 G-Oil which is synthetic.

Is it necessary to replace the engine oil and filter after the engine has overheated? After visiting my daughter this weekend at her college, one of my radiator hoses broke while I was on the highway heading back home. When I noticed that the temperature gauge had reached the high mark, I...

The previous link to "A Study of Automotive Gear Lubes" has failed. Here are alternative links: http://www.smokinvette.com/corvette/articles/a-study-of-automotive-gear-lubes-part-1/ http://www.smokinvette.com/corvette/articles/a-study-of-automotive-gear-lubes-part-2/ The 2nd link contains the...

In April, I sent a sample of G-Oil Bio-Based Synthetic 5W-30 to WearCheck for VOA. The results from WearCheck varied greatly from the results published by the PQIA (http://www.pqiamerica.com/January2012A/January2012R2/goil.htm). The first two columns of figures below shows large differences in...

Originally Posted By: Rand is 48000 a typo? that would be 5% sulfur. I've noted your skepticism. I've already asked WearCheck's customer service representative to double-check another set of results for another oil with twice the concentration of sulfur and other elements than that found by the...

Originally Posted By: ARCOgraphite But back to the emperor with no cloths - what about the suspected gross misformulation? I have just sent an email to WearCheck's customer service representative asking that its laboratory double-check its results. I did point out that there is a big difference...

Here is a VOA for Amsoil Severe Gear 75W-90 from WearCheck. Most elemental analysis figures are in parts per million (ppm) by mass. Code: AMSOIL SVG CONTAMINANT 75W-90 Silicon 14 Potassium 7.6 Sodium 1.0 Fuel (%) Glycol --...

From Walmart, I recently purchased engine oil produced by Green Earth Technologies: G-Oil SAE 5W-30 Green Bio-Based Full Synthetic Motor OIL API SM. It is unique in that it is made not from petroleum but rather from animal fat. Green Earth Technologies claims that its oil is “Not classified as...