would it be possible to use 5w30 oil in my E. I saw this at costco for much cheaper then buying individual quarts of 5w20.
Shouldn't you have changed the oil by now? :roll:only use the oil that came with the car.
That's because the Honda OEM oil can be really <cough> cheap oil. Test and compare again after it's been used.In oil analysis, Honda's 5w-20 tests closer to that of a 5w-30 in viscosity.
Honda OEM 5w20 is actually Exxon/Mobil Dino with a high moly content - great oil.That's because the Honda OEM oil can be really <cough> cheap oil. Test and compare again after it's been used.
I'll mention again here the sad story of the old GM 305 V-8 engines. The engine was designed for a 5w-30 weight oil but since it wasn't a popular weight at the time, a lot of owners used 10w-30 or 10w-40 instead because "it was close enough" and then found to their chagrin that they kept needing to go back in and get new camshafts and rocker arms. Instead of blaming the negligent owners, the negligent owners blamed GM for making a bad engine - and the 305 ended up with a bad rep for trouble. By the time that 5w-30 was plentiful, nobody wanted to buy a vehicle with a 305, even though nearly half of the V8's were 305's instead of 350's.
The only difference between the two engines that made any difference was that the passages on the 305 were designed for the thinner oil and thicker 10 weights wouldn't flow through them well enough, which I suspect is the same case for the engine in the E. Using a 10 weight oil, especially in cooler weather, especially a dino oil with the lower film strength, probably will cause trouble down the road. There are wise places to save money and wise places to spend it, and the right weight of oil is your engine's life blood.