Heavier weight oil for high mileage motors?
#16
The Delo 400 LE is a far better choice. The issue is the SDE does not qualify to be used in a Ford diesel engine. The issue is the amount of Phosphorus in the formulation has been reduced. The SDE has roughly 780 ppms whereas the LE carries 1200ppms. The phosphorus in a Ford engine acts like a cushion and is relied upon by Ford for the injectors. Otherwise, expect injector life to be short. For a gas engine, either will work but the LE has far more detergency and anti-friction properties for the same money. The LE is still a dual rated oil just like the SDE, good for gas or diesel engines.
#17
Just my opinion
Hey guys new member here. I have a 99 4.2 standard cab manuel. I bought my truck new in 99 when i was 16 years old, it now has 280,760k on it. I have always used havoline with pro deposit shield 5w20 and motorcraft filter. I at 200k mark switched to havoline high mileage same same mitorcraft filter. I go 5 to 8k in between and never one internalnoise or problem. My truck runs just as goid ad my fathers 2015. Thanks just my 2 cents
#19
#22
Good thread.
Here is more experience for the di-hard.
Most trucks don't have an honest working oil pressure gauge to track oil presser over time.
Therefore can't see the effects of internal wear effects on oil pressure.
I installed a gauge early on due to towing and intended long term ownership.
This 02 now has 285000 miles, engine is quiet, as much performance as new.
Oil has been changed on average 5 to 6k miles with 820s filter and 5w20 each time.
Cold start pressure is 75 psi depending on ambient temperature.
Hot idle of course is always the same and dependent on oil pump wear and engine rotating clearance wear.
Normal highway speeds on OD at about 2000 rpm runs a pressure of 48 to 50 psi.
I depend on the added oil pressure gauge to indicate when the engine gets to the point pressure is being lost as fast as the pump can generate flow by indicating a drop at idle.
That's the signal to begin making a decision even though there is a lot of life left.
Every performance engine application uses an oil pressure gauge.
Here is more experience for the di-hard.
Most trucks don't have an honest working oil pressure gauge to track oil presser over time.
Therefore can't see the effects of internal wear effects on oil pressure.
I installed a gauge early on due to towing and intended long term ownership.
This 02 now has 285000 miles, engine is quiet, as much performance as new.
Oil has been changed on average 5 to 6k miles with 820s filter and 5w20 each time.
Cold start pressure is 75 psi depending on ambient temperature.
Hot idle of course is always the same and dependent on oil pump wear and engine rotating clearance wear.
Normal highway speeds on OD at about 2000 rpm runs a pressure of 48 to 50 psi.
I depend on the added oil pressure gauge to indicate when the engine gets to the point pressure is being lost as fast as the pump can generate flow by indicating a drop at idle.
That's the signal to begin making a decision even though there is a lot of life left.
Every performance engine application uses an oil pressure gauge.
#25
Just to add something interesting and different, I built and ran Brigs & Stratton single cylinder 5hp engines for Go Kart racing in the World Karting Association.
They ran on Alcohol fuel, turned up to over 7000 rpm in stock blue printed form.
Sportsman modified class making about 17 hp ran up to 10,000 rpm on Alky fuel as mandated by the rules.
These motors are all based on the 5hp flat head utility engine.
The crank case lube was synthetic and water thin, changed two times each race meet due to Alky contamination.
These engines have no oil pump being Rod Dipper splash lubed.
Never lost an engine to thin lube.
As long at metal parts can be kept separated with lube that does not break down due to temperature, weight is not the all governing parameter.
They ran on Alcohol fuel, turned up to over 7000 rpm in stock blue printed form.
Sportsman modified class making about 17 hp ran up to 10,000 rpm on Alky fuel as mandated by the rules.
These motors are all based on the 5hp flat head utility engine.
The crank case lube was synthetic and water thin, changed two times each race meet due to Alky contamination.
These engines have no oil pump being Rod Dipper splash lubed.
Never lost an engine to thin lube.
As long at metal parts can be kept separated with lube that does not break down due to temperature, weight is not the all governing parameter.
#26
I'm new to Fords, and found this thread interesting. I just picked up a 2001 Screw with a 5.4, 2wd, automatic trans. Previous Owner wasn't much for maintenance, and claimed that he was adding oil at every 4th or 5th fill up, but couldn't tell me how that related to actual miles.
The truck starts up and runs just fine, but has a bunch of sludge on the top of the engine on the passenger side, especially around the dipstick. I'm planning on changing the plugs and all the fluids (engine oil, trans fluid, differential, power steering, etc.) to get to a maintenance baseline.
Since I don't know what oil he was running (per P.O.: whatever the guy at Firestone put in there), any recommendations for what I should go with? I've had good luck with Mobil 1 and Amsoil in the other vehicles in my fleet (mostly Japanese stuff), and would value any advice on oil and filter selection for this situation. My son had an older Jeep Cherokee with the 185K on the original Straight 6, and we ran Rotella 15-40 in it, based on a recommendation from a well-researched post on the Cherokee forum. It worked out well.
Thank you in advance to anyone who responds.
The truck starts up and runs just fine, but has a bunch of sludge on the top of the engine on the passenger side, especially around the dipstick. I'm planning on changing the plugs and all the fluids (engine oil, trans fluid, differential, power steering, etc.) to get to a maintenance baseline.
Since I don't know what oil he was running (per P.O.: whatever the guy at Firestone put in there), any recommendations for what I should go with? I've had good luck with Mobil 1 and Amsoil in the other vehicles in my fleet (mostly Japanese stuff), and would value any advice on oil and filter selection for this situation. My son had an older Jeep Cherokee with the 185K on the original Straight 6, and we ran Rotella 15-40 in it, based on a recommendation from a well-researched post on the Cherokee forum. It worked out well.
Thank you in advance to anyone who responds.
#27
When I bought my 2002 F150 with 110K miles on it, I checked the required oil and used the same, only HM (High Mileage), in my personal preference:
Mobil1 10W/20 HM. That was 10K miles ago and two oil changes ago (I change @ 5K intervals.) and my 4.2L V6 loves it. It stays clean for a long time and it hasn't burned a drop. The HM has additives to preserve the gaskets and seals.
Mobil1 10W/20 HM. That was 10K miles ago and two oil changes ago (I change @ 5K intervals.) and my 4.2L V6 loves it. It stays clean for a long time and it hasn't burned a drop. The HM has additives to preserve the gaskets and seals.
#28
Since I don't know what oil he was running
It stays clean for a long time
Another FWIW. Since the Advertising Council decided in the case of Mobil vs Castrol that any base oil that does not appear in nature is considered a synthetic oil, all base oils with the exception of the Gp I solvent refined base oils are a synthetic oil. That means yesterdays conventionals are now todays synthetics. If choosing or looking for a new oil, I'd strongly suggest previewing test results at the PQIA website. I'd be looking particularly at the ASTM D-5800 test. The lower the number, the more heat stable the oil is. It might surprise some of you to know that some of the synthetics on the market are all but failing the test. API and ILSAC says 15% is absolute max. Again, lower is better in this test criteria.
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#29
#30
but use OE specified weight