Recent content by AEHaas

A 0W-40, 5W-40, 10W-40, 20W-40, straight 40 grade oil all have the same viscosity at your normal fully warmed up operating temperature. And it takes a good 15 to 20 minutes for your motor oil temperature to get there (even though your water temperature gets up in a few minutes). The starting...

I've had numerous Lamborghini and Ferrari cars including the Enzo. Most recently the 812 Superfast. No direct experience in your engine but my statements stand. ali

A 0W-40, 5W-40, 10W-40, 20W-40, straight 40 grade oil all have the same viscosity at your normal fully warmed up operating temperature. And it takes a good 15 to 20 minutes for your motor oil temperature to get there (even though your water temperature gets up in a few minutes). The starting...

I never had a problem running oil grades 2 or 3 or 4 grades below what was specified. No signs of accelerated wear. What it gives me is better fuel economy, more power and the comfort of running high RPM before the engine oils heat up to the normal running temperatures. I do use whatever grade...

Doug Burgum, Secretary of the Interior, just announced the rollback of CAFE standards, in an interview with Fox’s Bret Baier. This is one of the ways they are helping the economy they say. Ali

I have a 7,000 mi GMC 2024 Yukon with the 6.2 L engine. Before I have had a Lincoln Navigator and multiple Ford Expeditions. None ever had to be topped up between oil changes but: the Navigator was a half quart low at the 1,000 mi mark using a 5 grade oil. I have used 20 and 16 grade oils. No...

I have actually used the density data when picking oils. If two oils have very similar and desirable characteristics I would then pick the more dense oil. I believe there is more protection there. This was based on data I reviewed some time ago but forgot the source. Ali

Several SAE papers confirmed that ZDDP above a level of 0.03 does nothing more but act in reserve as the zinc gets depleted (in ZDP formulated oils). So any modern ZDP formulated oil (around 800ppm) would work in that engine. Also, all newer SAE rated oils have always been backwards compatible...

I think all A/C units today are variable vane and always on. Here the humidity is always so high the vehicle would fog up inside if the A/C was totally off.

Right now we have 40-50 degree nights and 60-70 degree days. And yes, the MPG overall is less than mid-summer. Regardless there has been, over the years, this trend in my "regular" cars and trucks just after an oil change. In these cases the slight drop in viscosity grade (if at all) would...

Yes but did you get less MPG just after the oil change that later came back up to your "normal" MPG for that oil in that car? Ali

Over the years it has been my observation that oil changes (of the same exact type) result in less MPG early on. Then as the oil milage increases, the MPG gets back up to normal for each car. Then it stabilizes for the remainder of the oil run. Have you noticed the same? Sure, fuel dilution can...

I opened the Wix filter from the second 2,000mi run (4,000mi total on the original OEM oil). Remember I removed the OEM filter at the end of the first 2,000mi original interval. This was thrown out. To my surprise the Wix filter had Very little visible debris. Yes, I soaked off the oil in...

I changed the air filter because I felt the WIX may have a lower micron rating to start with. Maybe it does, maybe it doesn't. Also I always wonder if the filter on delivery of the car was set in correctly with the best seal. It seems as an issue from time to time. I guess I could have just...

Though there are 4,000 miles on both the engine and the oil, the oil samples each have 2,000 miles on them. What I see here is that there are few additional wear metals on the second sample. Almost if the engine is already broken in. The iron only went up 3 PPM for example during the second...