1st free oil change at dealer?
#16
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#18
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Also when you want synthetic dont expect your actually getting it. Your only paying for i,t but get regular oil. I use to get free oil change while waching it getting done. When I live in San Diego. Only use mobile 1 systhetic oil and my friend put regular oil on the mobile 1 to sell to someone else.
#19
Pit Crew
Some info I've gathered that you may find interesting.... This argument once happened with some regularity on the forums that deal with vehicles using the 5.7L 3UR-FE V8. Toyota specs 0W20 or 5W20 for the 3UR, and folks give the same arguments against using 5W30, too thick. The bearing clearances, oil filter, pump, and exhaust VVTi controller (the intake is electronic on the DI engines) are all essentially the same in UR Series Engines.
Comparison of main bearing oil clearances for an older Toyota V8 from the 1990 LS400, and two UR series, the 2007 Toyota Tundra and the 2008 IS-F. BOTH LS400 and IS-F are spec'd to run with 5W30.
Main bearing oil clearance
LS400 standard all journals .0010 - .0018
IS-F and Tundra journals 2 - 4 .0010 - .0015
journals 1 and 5 .0007 - .0012
LS400 max clearance limit .0022
IS-F and Tundra .0024
Of course, running to thick can create more heat, but that balance needs to be found. Thinner oils can be run, but they need to kept in their optimum CST range... big oil coolers.
Comparison of main bearing oil clearances for an older Toyota V8 from the 1990 LS400, and two UR series, the 2007 Toyota Tundra and the 2008 IS-F. BOTH LS400 and IS-F are spec'd to run with 5W30.
Main bearing oil clearance
LS400 standard all journals .0010 - .0018
IS-F and Tundra journals 2 - 4 .0010 - .0015
journals 1 and 5 .0007 - .0012
LS400 max clearance limit .0022
IS-F and Tundra .0024
Of course, running to thick can create more heat, but that balance needs to be found. Thinner oils can be run, but they need to kept in their optimum CST range... big oil coolers.
What manual says run thicker oil? Nothing in Lexus documentation says this. If this is a Haynes manual, they really don't know what they're talking about and I would not follow a recommendation like this when the exhaust cam timing is controlled by oil pressure.
This is what the US owner's manual says - there are no 40 weight options at all:
This is what the US owner's manual says - there are no 40 weight options at all:
#20
Tech Info Resource
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Running thick oil reduces horsepower, increases time to proper viscosity (if you ever get there), decreases fuel mileage, and typically does not have any benefit for street use. There's really only one measurement that bears any examination - you need 10 psi of oil pressure for every 1000 rpm up to 75 psi (there is no need to exceed 75 psi.)
Dr. Ali Haas has a great article on oil for Ferrari owners which really applies to anyone who wants to understand what oil needs to do and how to figure out what oil you really need.
Dr. Ali Haas has a great article on oil for Ferrari owners which really applies to anyone who wants to understand what oil needs to do and how to figure out what oil you really need.
#22
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#23
I brought my own oil to the first one, even though it was complimentary. (Castrol 5W-30 full synthetic @ 1100 miles or so)
I also politely reminded them this engine takes 9.8 qrtz of oil with the oil filter.
Try not to go to dealerships on Saturdays, that's when most of the "rookies" work there. I would also ask to speak with the Service Manager personally about your car.
I also politely reminded them this engine takes 9.8 qrtz of oil with the oil filter.
Try not to go to dealerships on Saturdays, that's when most of the "rookies" work there. I would also ask to speak with the Service Manager personally about your car.
#24
I might watch them work on my car next time. If I ever caught someone doing this, I would file a law suit against that dealership, I hope these techs understand what that means. That is the LOWEST OF LOWEST of behaviors in my opinion, it is theft, plain the simple.
#25
Pit Crew
I'd suggest reading Dr. Haas's article. It brings clarity to the whole problem.
#27
Tech Info Resource
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My question was a bit rhetorical, not trying to challenge you, though.... Just consider that we have two engines, with the same specs, and similar power. Both are designed to run the same oil temp and pressure, yet, a different oil CST at operating temp. is recommended by Toyota/Lexus.
This is how you can have two identically built engines with very different oil needs.
#28
Tech Info Resource
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#29
Pit Crew
Toyota still recommends 0W20 (or 5W20) for even heavily worked vehicles with 3UR-FE. These are 5800 lb Tundras and Land Cruisers. Larger transmissions and other components add up to more losses and load for the engine, never mind the aerodynamics.... they only hold 8 quarts compared to the 10 in the 2UR. The oil is going to be hotter far more often than most IS-F cars will ever see even occasionally.... for those that actually use their IS-F, a large oil to air cooler would be prudent if keeping XW30 in there.
#30
Tech Info Resource
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Toyota still recommends 0W20 (or 5W20) for even heavily worked vehicles with 3UR-FE. These are 5800 lb Tundras and Land Cruisers. Larger transmissions and other components add up to more losses and load for the engine, never mind the aerodynamics.... they only hold 8 quarts compared to the 10 in the 2UR. The oil is going to be hotter far more often than most IS-F cars will ever see even occasionally.... for those that actually use their IS-F, a large oil to air cooler would be prudent if keeping XW30 in there.
At the end of the day I care about one thing and one thing only. I've seen 284F at the track with 102F OAT. I run Mobil 1 5w-30 and have had it analyzed by Blackstone at every change (now 12k miles). Every time it comes back with excellent results. I'm a LOT more concerned about driving around with thick cold oil than I am about thin oil. Again, if you read Dr. Haas's article, all of this becomes pretty clear. Especially when you see there's practically no difference in viscosity from 20 weight to 60 weight at 302F. They're ALL way less than 5 cSt. I'm happy to run the oil that gets to 10 cSt more quickly...